How to Split PST File in Outlook? Get the Best Solutions

Summary: This blog explains how to split a PST file into smaller parts without any data loss. It includes the manual methods to split large PST files into smaller parts. You can also use the PST Splitter Software directly, which is a powerful utility for splitting up your PST file based on Year, Size, Sender Email and Folder. Download Now   Download Now

An Overview of Outlook PST file

Microsoft Outlook is a personal information manager that allows users to manage email messages, calendar events, contacts, journals, notes, tasks, and other mailbox items. For all this, it uses a PST (Personal Storage Table) file format, and being an Outlook user; you must also be aware of the PST file size limit. MS Outlook provides unmatched features and high-class performance but a PST file size limit. So, to reduce PST file corruption or damage issues, make sure to split your PST file regularly.

The larger your Outlook mailbox becomes, the more email you send and receive. Many email services, including Microsoft Outlook and Office 365, limit the maximum size of your inbox because large mailboxes take longer to access and search. Delete messages and folders if your mailbox exceeds its size limit. Still, if you save your information in an Outlook Data File (.pst), that data file may not divide in size automatically.

Why Need to Split PST file?

There are many reasons to split a large PST file; The most important ones are listed below:

• Because of the enormous size of the PST file, MS Outlook’s performance and speed begin to degrade.
• Users are barred from saving data items in PST file folders if the PST file is out of space or has extremely limited storage capacity.
• When the size of a PST file surpasses its allowable limit, the data in the PST file becomes unavailable to users.
• Once your PST file size increases, storing more data will become difficult.
• Users may want to split PST files to properly manage and organize their mailbox data.

These are different reasons responsible for the large Outlook PST file size, and due to this, more or less, your MS Outlook functioning affects. Now, let’s move to the methods of splitting PST files in Outlook 2021, 2019, 2016, 2013, 2010, 2007, etc.

Top 04 Methods to Split a PST file into Smaller Parts

MS Outlook does not offer a direct facility to split large PST files. But, we explored alternative methods to manually split PST files in Outlook 20121, 2019, 2016, 2013, 2010, and 2007, which are like this. Follow the steps for each method correctly.

Method 1: Split PST File using Mailbox Cleanup Tool

Mailbox Cleanup is a professional Microsoft inbuilt tool to view your mailbox size and split PST files. It comes up in all the different Outlook versions. Go through with easy and simple steps:

1. Run the Mailbox Cleanup utility.
2. Navigate to the File menu.
3. Navigate to Tools > Mailbox Cleanup.
4. Select View Mailbox Size, and then click OK. Find objects that are older than, find goods that are larger than, and find items that are smaller than. View the Size of Deleted Items, Empty the Deleted Items Folder, and so forth. View Conflicts Size or Empty Conflicts to complete your job.
5. To eliminate duplicate messages, use Conversation Clean Up.
6. So, by cleaning up your mailbox, you reduce the Outlook PST file size.

Method 2: Split Large PST File Using Import/Export Built-in Feature

The Import/Export wizard adds PST to Outlook and imports data files from Outlook, but it also splits PST files in MS Outlook. Follow the Steps Mentioned Below to Splitting Large PST files:

1. Open MS Outlook and Go to the File Tab.
   
2. In the Account Settings Block and then Click on Account Settings.
3. Now in the Data Files tab, click on Add button.
4. Enter the PST file name and then create a new PST file.
5. Now, Click on the Import/Export option in Open & Export.
6. Choose the Export to a File option and click Next to continue.
7. Select Outlook Data File (.pst) option and then hit the Next button.
8. Select the folders you want to save and click on Next.
   
9. Browse the Saving location of the PST file and click on the Finish button.

Method 3: Split PST File using the Move to Folder Option

Move to Folder options is the best manual process that allows you to reduce the size of your Outlook data file and remove duplicate items from the default PST file.

1. Open Outlook and navigate the File tab >> Account Settings >> Account Settings.
2. Navigate to the Data Files section and click the Add button to add a new PST file.
3. Click on Home, open your Outlook profile’s default PST file, and pick the things you wish to move to the new PST file you created in Step 2.
4. Select Copy to Folder from the Move menu on the ribbon to do so.
5. Select the PST file so all chosen data items from the default PST file may be transferred to the new one.
6. Delete the duplicated items from the default PST file to minimize its size.

The three methods described above to split a large PST file into smaller ones are all manual. They share some common benefits and drawbacks, which have been discussed here.

Common Drawbacks of Manual Methods

• If the PST file is large, it will take some time. It can take several hours to complete some tasks.
• Technical knowledge and experience are required.
• It may be a chance that your PST file is corrupt.

Method 4: Split PST File Using PST Splitter Tool

Another best option to split large Outlook PST files is to use third-party splitter software. It is, however, difficult to choose the ideal one. Aryson Split PST Software is a powerful utility that allows you to split PST files without Outlook based on Date, Size, Sender, Email, ID, and Folder.

Follow the Steps to Split a PST File without Outlook

1. Install and Run Aryson Split PST Tool.
2. Click on Add File or Folder button to Select PST file.
3. Previews the selected PST file and click on the Next button.
4. Select Split PST by Size/Date/Sender/Folder options and click on the Next button.
5. Choose destination path to save the split file.
6. Now, click on the Split button to split your PST file successfully.

Conclusion

As previously stated, numerous techniques to split large PST files in MS Outlook have exceeded permissible storage limits or are on the verge of exceeding maximum storage size limits. As a result, we have mentioned both manual and automated techniques for your comfort and convenience. As you can see, manual methods are not direct for splitting PST files; they are only temporary workarounds. The professional tool method is best to split PST files without difficulty.

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