To split a large PST file into smaller parts, you can use the built-in feature of Microsoft Outlook called "Archive." Here's how to do it: Using Regain PST Splitter software.

1. Open Microsoft Outlook on your computer.
2. Click on the "File" menu and select "Options."
3. Click on "Advanced" and then click on "AutoArchive Settings."
4. In the "AutoArchive" dialog box, select "Archive this folder using these settings."
5. Choose the folder you want to archive and set the "Archive items older than" field to a specific date.
6. Select the "Move old items to" option and click on "Browse" to select a location to save the archived items. You can create a new PST file or choose an existing one.
7. Set any other options as per your requirements and click "OK" to save the settings.
8. Click on "OK" again to close the "Options" dialog box.
9. Once you have set up the archive settings, you can manually run the archive process by clicking on the "File" menu and selecting "Cleanup Tools" > "Archive." Select the folder you want to archive and click on "OK."

Outlook will now move all the items that match the archive settings from the selected folder to the specified PST file. You can repeat the archive process for other folders or create multiple PST files to split the data into smaller parts.

That’s all there is to the process. With these steps, you can easily split a large PST file into smaller parts using the "Archive" feature in Microsoft Outlook. However, if you have a budget, you can absolutely go for any third-party PST splitter tool.

To know more detail visit here - Manual Way to Split PST File in Outlook 2019/2016/2013/2010

The easiest way to split a PST file into smaller parts is to use a PST split tool. A PST Split Tool is designed to allow users to split a large PST file into multiple smaller files. The tool can be used to split a PST file of any size into various sizes of PST files, making it easier to manage and transfer large PST files. The tool also supports a number of other features, such as Split Large PST files, Supports ANSI and Unicode PST files, and a free trial. This software is designed to split large PST files into smaller parts based on size, folder, and year. This software supports all Windows OS versions like - 11, 10, 8.1, 8, 7, and XP.

Try the ToolsBaer Split PST Tool to split Outlook PST files into Contacts, Notes, Folders, Contacts, and so on. This tool makes splitting Outlook PST files a breeze. Because this application is small in size, users can easily save it. Their Outlook PST files frequently contain information that is difficult to locate. It is recommended to use this strategy to split large Outlook PST files into multiple smaller ones. It also works with a variety of Windows operating systems, including Windows 11, 10, 8.1, 8, 7, XP, and Vista. Users may simply save Outlook PST files in a variety of partitions based on size, year, and folders with the help of this application.

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