Split PST File Into Smaller Parts to Avoid the Oversized Issues

The Outlook PST file used to store emails, contacts, calendars and other mailbox items. ANSI PST and Unicode PST are the two types of personal storage table files. In case of Outlook 2002 and its earlier versions ANSI PST file used and it has the file size limitations of 2 GB. In case of Outlook 2016, 2013, 2010, 2007, & 2003 versions it uses Unicode PST with 20 to 50 GB storage space provided. If both the files exceeded their file size limit then it will become corruption state. To avoid this situation we discussed different possible solutions to divide outlook PST file.

Manual Solution to Split PST file into smaller parts:

There are different methods available to cut PST file that are: Import and Export feature, move to folder option, archive, etc. The steps to proceed these solutions listed below:

Approach#1: Use Archive Feature:

Step 1: Open Outlook –> Select the PST file

Step 2: Select the options File–> Info–>Cleanup Tools–> Archive.


Step 3: From the given Archive dialog box mark the option “Archive this folder and sub folders”. After that select the folder from the list.

Step 4: From the option “Archive items older than” select your needed date from the calendar.

Step 5: Click on “Browse” to select the location and provide a name to save the file. It becomes archive.pst by default.

Step 6: After clicking on “OK” it will break PST file or split PST file into smaller parts.

Step 7: After performing the above 6 steps it will create a new file and you can check it from MS Outlook.

Approach#2: Use Import & Export Option:

Step 1: Download and run Outlook and create one new PST data file

Step 2: Select the “File” tab and then browse to the location and give a name then click on “OK” to proceed.

Step 3: Follow the options File–> Open–>Import then you can get Import and Export wizard.


Step 4: Select the options Export–> Next–> Outlook data file–> Next.

Step 5: After selecting the items from the folder click the “Next” button and select “Browse”.

Step 6: Select the file then click OK–> Finish to split PST file into smaller parts.

Approach#3: Move to Folder Option:

Step 1: Open Outlook and then select the options New Items–> More Items–> Outlook File from the home tab.


Step 2: Follow the steps New Data File–> OK.

Step 3: Open and expand the file in which you need to copy

Step 4: Choose one mailbox and click the options Move–> Copy Folder–> OK.


  • Lengthy Process
  • Time-consuming
  • Tiresome Process
  • There is no guarantee to get perfect solution always

Approach#4: Expert Solution to Split PST file into smaller parts

The best and fastest way to overcome the oversized issues of PST file is using software fix. SysTools Split PST is one of the automated solutions it can divide PST file in an efficient and perfect way. It will provide many unique features like no file size limitation, separate PST files by year, date, size, and folder etc.


From this write up one can get many possible solutions to the question how to Split PST file into smaller parts. You can choose manual or automated solution according to your need from this article. Due to some limitations of manual methods mentioned above, most of the peoples are switching to the automated tool like split PST, because it can provide the perfect solution within few minutes.


In this technical world, peoples do not realize that the personal storage table files of Microsoft Outlook are getting oversized in a large manner. In this situation, there is a chance raised to become these files damage or inaccessible. Also, it will degrade the performance of Outlook email client. To overcome this issues the best way is to Split PST file into smaller parts.

Author Bio:

James Smith is a data recovery expert who works as freelancer technical blogger. He has been in the Data recovery industry for 10 + years. He researched on various email client issues and willing to share information among people through web.

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