split outlook data file

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Divide OST Tool

A Simple & Easy Solution to Break OST File into Small Parts of PST Efficiently

  • Divide large OST file into smaller parts by Date, Size, Year & Folder
  • Split Outlook OST file into Unicode type PST without OST file size limit
  • Option to divide OST file data items such as emails, contacts, etc
  • Permit users to break recently created and archive MS Outlook OST file
  • Microsoft Outlook must be installed on the local machine to divide OST file

Proficient Features of the Tool

Outlook OST File Splitter Software

In order to divide OST file, one is advised to use Outlook OST File Splitter application. It helps in organizing OST file based on its size, date, folder, and year. The software successfully divides a single OST file containing all data items like contacts, calendar, notes, etc., into multiple parts. Apart from all this, the software provides an option to divide newly created or archive OST file. To have a better understanding of the Outlook OST File Splitter software into small parts of PST file, have a look at the features discussed below.

Option to Divide Oversized OST

Option to Divide Oversized OST

Using this OST file Splitter software, a user can divide OST file into small parts of PST file of UNICODE type. It has the ability to break all data items stored in the OST file like emails, contacts, calendars, etc. into small parts. Moreover, it keeps the Meta properties intact as original the even after breaking Outlook OST file.

Break OST by Size

Option to Break OST by Size & Folder

In order to split OST file, the software provides users an option to break PST file by size & folder. Divide OST by size option allows users to split OST into multiple parts of the same size. In addition, if a user wants to split OST by folder, the application will generate a separate PST file for each folder respectively.

Split OST by Year and Date

Split Outlook OST by Year & Date

While splitting OST file, it provides users an option to break OST by year and date also. This will help in organizing OST file in much better way. In the case of split OST by year, the software creates a separate file for each year. However, in the case of break OST by date, the tool creates two files. One for data before & prior to the specified date and another file of all data item after that date.

Save Resultant File at Desired Location

Save Resultant File At Desired Location

After breaking OST file into small parts of PST file, the software provides users an option to save the resultant PST files at any desired location. However, if a user wants, then can create new folder also to store resultant PST file. Apart from all this, the complete process of OST split requires MS Outlook installation on the system.

Steps to Divide OST File


Outlook OST File Splitter software is a perfect solution with a user-friendly interface, which is easy to understand by both technical and non-technical user. This software divide large Outlook OST file containing emails, contacts, and archive into small parts within a few clicks.


Install OST Splitter Tool

Download & Install the tool


Slect Divide OST Option

Select the Split Option


Add OST Files to Split them

Add the OST File


click on OK to Complete Process

Click on OK button to complete the process

Compare Editions

OST File Splitter — Trial & Full Version

Add Outlook OST File  
Support ANSI or UNICODE Both PST Types  
Split Options (Date, Size, Year & Folder)  
Preview Split Information  
Split Outlook OST File First 50 Emails   All Items

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Satisfaction Of Clients


The software provides such an easy-to-use interface that even a non-technical user like me can also use this OST Splitter software without any expert help. Thanks to developer for an amazing tool.

Nina Gilbert, USA

I had few large OST file that needs to organized in much better. Thanks to this Divide OST file tool for helping me in the same. I can easily say that it is an outstanding tool that I have tried ever.

Ian, Australia

Divide OST file split my Microsoft Outlook OST file and allows me to reduce OST file without compromising data integrity. Now, it is really easy for me to handle all my emails, calendars, contacts in more organized way.

Paul, Texas

Four different option to divide OST file is really impressive. I like divide OST by year option it helps in creating separate OST file for each year in just a number of clicks. Thanks to the developer for such a great effort. Hats Off!!

Bonnie Smith, Brazil

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