{"id":884,"date":"2019-08-08T13:02:26","date_gmt":"2019-08-08T13:02:26","guid":{"rendered":"https:\/\/www.arysontechnologies.com\/updates\/?p=884"},"modified":"2025-11-19T07:03:07","modified_gmt":"2025-11-19T07:03:07","slug":"what-is-nst-file-and-convert-nst-pst","status":"publish","type":"post","link":"https:\/\/www.arysontechnologies.com\/updates\/what-is-nst-file-and-convert-nst-pst\/","title":{"rendered":"NST File &#8211; What is it and How to Convert NST to PST File"},"content":{"rendered":"<p class=\"block_sum\"><em>If you are using Microsoft Outlook with Office 365 or Exchange Server, you might come across <strong>NST files<\/strong>. These files store mailbox data and are linked with Outlook&rsquo;s Exchange cache. Sometimes, you may need to convert NST files to <strong>PST format<\/strong> for backup, migration, or offline access. In this complete blog, we&rsquo;ll explain what NST files are and show you how to convert NST to PST safely.<\/em><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title ez-toc-toggle\" style=\"cursor:pointer\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.arysontechnologies.com\/updates\/what-is-nst-file-and-convert-nst-pst\/#Brief_About_the_NST_File\" >Brief About the NST File<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.arysontechnologies.com\/updates\/what-is-nst-file-and-convert-nst-pst\/#Key_Pointers_Associated_with_the_NST_Files\" >Key Pointers Associated with the NST Files<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.arysontechnologies.com\/updates\/what-is-nst-file-and-convert-nst-pst\/#Know_why_You_Need_to_Convert_NST_to_PST\" >Know why You Need to Convert NST to PST?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.arysontechnologies.com\/updates\/what-is-nst-file-and-convert-nst-pst\/#How_to_Locate_NST_Files_on_Your_System\" >How to Locate NST Files on Your System<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.arysontechnologies.com\/updates\/what-is-nst-file-and-convert-nst-pst\/#Steps_to_Locate_NST_File_Manually\" >Steps to Locate NST File Manually:<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.arysontechnologies.com\/updates\/what-is-nst-file-and-convert-nst-pst\/#Explore_the_Methods_to_Convert_NST_to_PST\" >Explore the Methods to Convert NST to PST<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.arysontechnologies.com\/updates\/what-is-nst-file-and-convert-nst-pst\/#Method_01_Manual_Method_to_Export_NST_File_to_Outlook_PST\" >Method 01: Manual Method to Export NST File to Outlook PST<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.arysontechnologies.com\/updates\/what-is-nst-file-and-convert-nst-pst\/#Follow_the_Steps_below_to_Convert_NST_to_PST_manually\" >Follow the Steps below to Convert NST to PST manually:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.arysontechnologies.com\/updates\/what-is-nst-file-and-convert-nst-pst\/#Limitations_of_the_Manual_Method\" >Limitations of the Manual Method<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.arysontechnologies.com\/updates\/what-is-nst-file-and-convert-nst-pst\/#Method_02_All-in-One_Solution_to_Convert_NST_to_PST_Format\" >Method 02: All-in-One Solution to Convert NST to PST Format<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.arysontechnologies.com\/updates\/what-is-nst-file-and-convert-nst-pst\/#Simplified_Steps_to_Export_NST_File_to_Outlook_PST\" >Simplified Steps to Export NST File to Outlook PST<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.arysontechnologies.com\/updates\/what-is-nst-file-and-convert-nst-pst\/#Conclusion\" >Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.arysontechnologies.com\/updates\/what-is-nst-file-and-convert-nst-pst\/#Frequently_Asked_Questions\" >Frequently Asked Questions<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Brief_About_the_NST_File\"><\/span>Brief About the NST File<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>An NST file is a data file used by Microsoft Outlook when connected to Office 365 or Exchange accounts through Outlook Connector. It stores mailbox data like emails, contacts, and calendar items for accounts linked to Office 365.<\/p>\n<h3 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Key_Pointers_Associated_with_the_NST_Files\"><\/span>Key Pointers Associated with the NST Files<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>NST files are specifically used for cached Exchange accounts.<\/li>\n<li>PST files, on the other hand, are standard Outlook data files that can be opened in any version of Outlook.<\/li>\n<li>NST files are not portable, so converting them to PST is essential for offline access and backup.<\/li>\n<\/ul>\n<p>Because NST files are tied directly to Exchange accounts, users often face challenges when they want to <strong>migrate emails, create backups, or access data offline<\/strong>. Converting NST files to PST format addresses these limitations, offering greater flexibility and enhanced data security.<\/p>\n<h2 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Know_why_You_Need_to_Convert_NST_to_PST\"><\/span>Know why You Need to Convert NST to PST?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Even though NST files are helpful for Outlook&rsquo;s offline functionality, there are several scenarios where converting them to PST format becomes essential. Let&rsquo;s understand some of the common reasons behind this conversion:<\/p>\n<ul>\n<li>PST files can be accessed directly in Outlook without connecting to the Office 365 or Exchange Server. This makes PST a more flexible and portable format.<\/li>\n<li>Creating a PST copy of your NST data helps in securing your emails and attachments for future reference or disaster recovery.<\/li>\n<li>When users shift to a new Outlook account or system, PST files make it easy to migrate data without losing integrity.<\/li>\n<li>If the NST file becomes damaged or orphaned, converting it to PST helps recover the mailbox data and restore usability.<\/li>\n<li>Some organizations prefer storing PST backups for compliance or audit purposes since PST files are easier to handle and share.<\/li>\n<\/ul>\n<p>In short, converting NST to PST not only improves data accessibility but also ensures long-term data security and portability.<\/p>\n<h3 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"How_to_Locate_NST_Files_on_Your_System\"><\/span>How to Locate NST Files on Your System<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Before proceeding with conversion, it&rsquo;s important to locate where your NST files are stored. Typically, Outlook saves them in a hidden system folder.<\/p>\n<p>Default NST File Location: C:\\Users\\%username%\\AppData\\Local\\Microsoft\\Outlook\\<\/p>\n<h4 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Steps_to_Locate_NST_File_Manually\"><\/span>Steps to Locate NST File Manually:<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ol>\n<li>Press Windows + R on your keyboard to open the Run dialog box.<\/li>\n<li>Type %localappdata%\\Microsoft\\Outlook\\ and press Enter.<\/li>\n<li>The Outlook data folder will open. Look for files ending with the .nst extension.<\/li>\n<li>Once found, note the file name and location for conversion.<\/li>\n<\/ol>\n<p>You can also right-click on your Outlook account in the data file settings to see where it&rsquo;s stored.<\/p>\n<h2 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Explore_the_Methods_to_Convert_NST_to_PST\"><\/span>Explore the Methods to Convert NST to PST<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Now, let&rsquo;s explore the best way to convert NST file to PST format to perform this conversion safely and efficiently.<\/p>\n<h3 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Method_01_Manual_Method_to_Export_NST_File_to_Outlook_PST\"><\/span>Method 01: Manual Method to Export NST File to Outlook PST<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Unfortunately, Outlook doesn&rsquo;t include a dedicated option to convert NST files directly into PST format. However, you can manually export the mailbox data linked with your NST file into a PST file using Outlook&rsquo;s built-in Import\/Export feature to open NST file in Outlook.<\/p>\n<h4 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Follow_the_Steps_below_to_Convert_NST_to_PST_manually\"><\/span>Follow the Steps below to Convert NST to PST manually:<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>Launch Microsoft Outlook on your computer.<\/li>\n<li>Make sure your Office 365 account associated with the NST file is connected and synced.<\/li>\n<li>Click on the File tab located at the top-left corner.<\/li>\n<li>Select Open &amp; Export, then click Import\/Export.<\/li>\n<li>Choose Export to a file and click Next.<\/li>\n<li>Select Outlook Data File (.pst) and click Next again.<\/li>\n<li>Choose the mailbox or folder you want to export.<\/li>\n<li>Browse the location where you want to save the PST file.<\/li>\n<li>Click Finish to open NST and export NST to PST.<\/li>\n<\/ul>\n<p>Once completed, your mailbox data will be stored as a PST file. You can now open this PST in any Outlook profile without depending on the original Office 365 connection.<\/p>\n<h4 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Limitations_of_the_Manual_Method\"><\/span>Limitations of the Manual Method<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Although the manual process works for basic data export, it comes with several drawbacks that make it unreliable in complex cases:<\/p>\n<ul>\n<li><strong>Active Connection Required: <\/strong>It only works if your Outlook profile is connected to the Office 365 account.<\/li>\n<li><strong>No Support for Corrupted or Orphaned Files: <\/strong>You cannot export data from damaged or disconnected NST files. In that case, use<strong> PST Recovery Software<\/strong> to fix the resultant PST file.<\/li>\n<li><strong>Time-Consuming Process: <\/strong>The process is slow and not suitable for large mailboxes.<\/li>\n<li><strong>Risk of Data Inconsistency: <\/strong>Partial or incomplete export may occur if synchronization is unstable.<\/li>\n<\/ul>\n<p>Because of these challenges, professionals often prefer automated tools that simplify and secure the entire conversion process.<\/p>\n<h3 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Method_02_All-in-One_Solution_to_Convert_NST_to_PST_Format\"><\/span>Method 02: All-in-One Solution to Convert NST to PST Format<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>To convert NST file data, you first rename the NST file extension to OST. After that, you can use the <a href=\"https:\/\/www.arysontechnologies.com\/convert-ost-to-pst-online.html\" target=\"_blank\" rel=\"noopener\"><strong>Aryson<\/strong> <strong>OST to PST Converter Tool<\/strong><\/a> to convert the exported NST file to PST format. It provides a smooth way to restore emails, contacts, calendars, notes, tasks, journals, and attachments without affecting the data structure. Users can also preview each item before conversion, which helps them select only the data they want to export. This software is popular because it works with all Outlook versions and supports both ANSI and UNICODE Outlook files. It is easy to use, even for non-technical users, and completes the entire NST to PST conversion in a few simple steps.<\/p>\n<div class=\"row justify-content-center mac-win-tab\">\n<div class=\"col-md-6\">\n<ul id=\"myTab\" class=\"nav nav-tabs justify-content-center border-primary\" role=\"tablist\">\n<li class=\"nav-item\" role=\"presentation\"><button id=\"home-tab\" class=\"nav-link bg-transparent px-4 active\" role=\"tab\" type=\"button\" data-toggle=\"tab\" data-target=\"#home\" aria-controls=\"home\" aria-selected=\"true\"><i class=\"icon-windows\"><\/i> Windows<\/button><\/li>\n<li class=\"nav-item\" role=\"presentation\"><button id=\"profile-tab\" class=\"nav-link bg-transparent px-4\" role=\"tab\" type=\"button\" data-toggle=\"tab\" data-target=\"#profile\" aria-controls=\"profile\" aria-selected=\"false\"><i class=\"icon-apple\"><\/i>Mac<\/button><\/li>\n<\/ul>\n<div id=\"myTabContent\" class=\"tab-content\">\n<div id=\"home\" class=\"tab-pane fade active show\" role=\"tabpanel\" aria-labelledby=\"home-tab\"><span class=\"block_btn\"><a class=\"custom-download-btn\" href=\"https:\/\/www.arysontechnologies.com\/demo-version\/Aryson-OST-to-PST-Converter.exe\" rel=\"nofollow\"><i class=\"icon-windows\"><\/i> Download Now<\/a>&nbsp;&nbsp;<a class=\"custom-buy-btn\" href=\"https:\/\/www.arysontechnologies.com\/purchase-ost-to-pst-converter-tool.php\" target=\"_blank\" rel=\"noopener noreferrer nofollow\"><i class=\"icon-basket\"><\/i> Purchase Now<\/a><\/span><\/div>\n<div id=\"profile\" class=\"tab-pane fade\" role=\"tabpanel\" aria-labelledby=\"profile-tab\"><span class=\"block_btn\"><a class=\"custom-download-btn\" href=\"https:\/\/www.arysontechnologies.com\/demo-version\/Aryson-OST-to-PST-Converter-for-mac.dmg\" rel=\"nofollow\"><i class=\"icon-apple\"><\/i> Download Now<\/a>&nbsp;&nbsp;<a class=\"custom-buy-btn\" href=\"https:\/\/www.arysontechnologies.com\/mac\/ost-migration\/buy-now.php\" target=\"_blank\" rel=\"noopener noreferrer nofollow\"><i class=\"icon-basket\"><\/i> Purchase Now<\/a><\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<h3 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Simplified_Steps_to_Export_NST_File_to_Outlook_PST\"><\/span>Simplified Steps to Export NST File to Outlook PST<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li><strong>Download <\/strong>and<strong> install<\/strong> the Aryson OST to PST Converter Tool on your system.<\/li>\n<li>After that, click on the <strong>Select File<\/strong> or Open option to add the exported OST file data.<\/li>\n<li><strong>Wait for the software to scan<\/strong> the file and load all mailbox items in the preview panel.<\/li>\n<li><strong>Choose the PST format<\/strong> from the list of output options to export your mailbox.<\/li>\n<li><strong>Apply filters<\/strong>, such as selective folders or date range, if you want to convert specific items.<\/li>\n<li>Select the destination path and <strong>click Convert button<\/strong> to start the NST to PST conversion.<\/li>\n<\/ol>\n<h2 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>NST files are an essential part of Outlook when working with Office 365 Groups, but they can sometimes become inaccessible or difficult to convert NST to PST Converting NST to PST is a practical solution for backup, migration, and data recovery. Although you can try the manual export method, it may not work for all cases, especially when the file is corrupted. In such situations, using the<a href=\"https:\/\/www.arysontechnologies.com\/ost-recovery.html\" target=\"_blank\" rel=\"noopener\"> Aryson OST Recovery Tool <\/a>provides a reliable and effortless way to perform the conversion safely.<\/p>\n<h2 class=\"faq-main_heading\"><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions\"><\/span>Frequently Asked Questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1763535687954\"><strong class=\"schema-faq-question\"><strong>Q1. How is NST different from OST?<\/strong><\/strong> <p class=\"schema-faq-answer\"><strong>Ans:<\/strong> NST is created for Office 365\/Outlook Connector accounts, while OST is created for normal Exchange or IMAP accounts. Both store cached mailbox data, but NST is specific to Office 365 synchronization.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1763535716640\"><strong class=\"schema-faq-question\"><strong>Q2. Can I open an NST file directly in Outlook?<\/strong><\/strong> <p class=\"schema-faq-answer\"><strong>Ans: <\/strong>No, Outlook cannot open NST files directly. You must convert the NST file to PST or change the file extension to OST and then use a professional tool.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1763535737064\"><strong class=\"schema-faq-question\"><strong>Q3. Can I convert a large NST file to PST?<\/strong><\/strong> <p class=\"schema-faq-answer\"><strong>Ans: <\/strong>Yes, above above-recommended automated software supports large NST files without corruption. They also allow you to split the output PST.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1763535757040\"><strong class=\"schema-faq-question\"><strong>Q4. Which Outlook versions support the PST file after conversion?<\/strong><\/strong> <p class=\"schema-faq-answer\"><strong>Ans: <\/strong>You can import the converted PST into Outlook 2021, 2019, 2016, 2013, and other earlier versions.<\/p> <\/div> <\/div>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;884&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;1&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;5&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;Rate this post&quot;,&quot;legend&quot;:&quot;5\\\/5 - (1 vote)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;NST File - What is it and How to Convert NST to PST File&quot;,&quot;width&quot;:&quot;142.5&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 142.5px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            5\/5 - (1 vote)    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p>If you are using Microsoft Outlook with Office 365 or Exchange Server, you might come across NST files. These files<a class=\"read-more ml-1 main-read-more\" href=\"https:\/\/www.arysontechnologies.com\/updates\/what-is-nst-file-and-convert-nst-pst\/\">Read More<\/a><\/p>\n","protected":false},"author":7,"featured_media":887,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-884","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-how-to"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>NST File - What is it and How to Convert NST to PST File<\/title>\n<meta name=\"description\" content=\"Learn what an NST file is and how to safely convert NST to PST using simple, reliable methods for better Outlook data access.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.arysontechnologies.com\/updates\/what-is-nst-file-and-convert-nst-pst\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"NST File - What is it and How to Convert NST to PST File\" \/>\n<meta property=\"og:description\" content=\"Learn what an NST file is and how to safely convert NST to PST using simple, reliable methods for better Outlook data access.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.arysontechnologies.com\/updates\/what-is-nst-file-and-convert-nst-pst\/\" \/>\n<meta property=\"og:site_name\" content=\"Aryson Software\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/arysontech\/\" \/>\n<meta property=\"article:published_time\" content=\"2019-08-08T13:02:26+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-11-19T07:03:07+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.arysontechnologies.com\/updates\/wp-content\/uploads\/2019\/08\/what-is-nst-file.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"698\" \/>\n\t<meta property=\"og:image:height\" content=\"400\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Rohan Wiese\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Rohan Wiese\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.arysontechnologies.com\\\/updates\\\/what-is-nst-file-and-convert-nst-pst\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.arysontechnologies.com\\\/updates\\\/what-is-nst-file-and-convert-nst-pst\\\/\"},\"author\":{\"name\":\"Rohan Wiese\",\"@id\":\"https:\\\/\\\/www.arysontechnologies.com\\\/updates\\\/#\\\/schema\\\/person\\\/ef81a300f90607837bf983bbe12c01ff\"},\"headline\":\"NST File &#8211; 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Both store cached mailbox data, but NST is specific to Office 365 synchronization.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.arysontechnologies.com\\\/updates\\\/what-is-nst-file-and-convert-nst-pst\\\/#faq-question-1763535716640\",\"position\":2,\"url\":\"https:\\\/\\\/www.arysontechnologies.com\\\/updates\\\/what-is-nst-file-and-convert-nst-pst\\\/#faq-question-1763535716640\",\"name\":\"Q2. Can I open an NST file directly in Outlook?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<strong>Ans: <\\\/strong>No, Outlook cannot open NST files directly. You must convert the NST file to PST or change the file extension to OST and then use a professional tool.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.arysontechnologies.com\\\/updates\\\/what-is-nst-file-and-convert-nst-pst\\\/#faq-question-1763535737064\",\"position\":3,\"url\":\"https:\\\/\\\/www.arysontechnologies.com\\\/updates\\\/what-is-nst-file-and-convert-nst-pst\\\/#faq-question-1763535737064\",\"name\":\"Q3. Can I convert a large NST file to PST?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<strong>Ans: <\\\/strong>Yes, above above-recommended automated software supports large NST files without corruption. 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He enjoys conducting research and generating information that assists database administrators, businesses, and novices in resolving issues with MS SQL Server, MySQL databases, Cloud Computing, and Microsoft Exchange.","sameAs":["https:\/\/www.linkedin.com\/in\/rohan-wiese-writer\/"],"url":"https:\/\/www.arysontechnologies.com\/updates\/author\/rohanwiese\/"},{"@type":"Question","@id":"https:\/\/www.arysontechnologies.com\/updates\/what-is-nst-file-and-convert-nst-pst\/#faq-question-1763535687954","position":1,"url":"https:\/\/www.arysontechnologies.com\/updates\/what-is-nst-file-and-convert-nst-pst\/#faq-question-1763535687954","name":"Q1. How is NST different from OST?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans:<\/strong> NST is created for Office 365\/Outlook Connector accounts, while OST is created for normal Exchange or IMAP accounts. Both store cached mailbox data, but NST is specific to Office 365 synchronization.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.arysontechnologies.com\/updates\/what-is-nst-file-and-convert-nst-pst\/#faq-question-1763535716640","position":2,"url":"https:\/\/www.arysontechnologies.com\/updates\/what-is-nst-file-and-convert-nst-pst\/#faq-question-1763535716640","name":"Q2. Can I open an NST file directly in Outlook?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans: <\/strong>No, Outlook cannot open NST files directly. You must convert the NST file to PST or change the file extension to OST and then use a professional tool.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.arysontechnologies.com\/updates\/what-is-nst-file-and-convert-nst-pst\/#faq-question-1763535737064","position":3,"url":"https:\/\/www.arysontechnologies.com\/updates\/what-is-nst-file-and-convert-nst-pst\/#faq-question-1763535737064","name":"Q3. Can I convert a large NST file to PST?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans: <\/strong>Yes, above above-recommended automated software supports large NST files without corruption. They also allow you to split the output PST.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.arysontechnologies.com\/updates\/what-is-nst-file-and-convert-nst-pst\/#faq-question-1763535757040","position":4,"url":"https:\/\/www.arysontechnologies.com\/updates\/what-is-nst-file-and-convert-nst-pst\/#faq-question-1763535757040","name":"Q4. Which Outlook versions support the PST file after conversion?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans: <\/strong>You can import the converted PST into Outlook 2021, 2019, 2016, 2013, and other earlier versions.","inLanguage":"en-US"},"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/www.arysontechnologies.com\/updates\/wp-json\/wp\/v2\/posts\/884","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.arysontechnologies.com\/updates\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.arysontechnologies.com\/updates\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.arysontechnologies.com\/updates\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.arysontechnologies.com\/updates\/wp-json\/wp\/v2\/comments?post=884"}],"version-history":[{"count":9,"href":"https:\/\/www.arysontechnologies.com\/updates\/wp-json\/wp\/v2\/posts\/884\/revisions"}],"predecessor-version":[{"id":2068,"href":"https:\/\/www.arysontechnologies.com\/updates\/wp-json\/wp\/v2\/posts\/884\/revisions\/2068"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.arysontechnologies.com\/updates\/wp-json\/wp\/v2\/media\/887"}],"wp:attachment":[{"href":"https:\/\/www.arysontechnologies.com\/updates\/wp-json\/wp\/v2\/media?parent=884"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.arysontechnologies.com\/updates\/wp-json\/wp\/v2\/categories?post=884"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.arysontechnologies.com\/updates\/wp-json\/wp\/v2\/tags?post=884"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}