# How to Merge Large PST Files into a Single Outlook Data File?

**URL:** <https://forum.readymag.com/t/how-to-merge-large-pst-files-into-a-single-outlook-data-file/7348>\
**Category:** General topics\
**Created:** [November 5, 2026, 9:50am UTC](https://forum.readymag.com/t/how-to-merge-large-pst-files-into-a-single-outlook-data-file/7348 "2026-11-05T09:50:03Z")\
**Posts on this page:** 1\
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**Author:** ![Andre594](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.readymag.com/andre594/32/4664_2.png) [@Andre594](https://forum.readymag.com/u/Andre594)\
**Post date:** [November 5, 2026, 9:50am UTC](https://forum.readymag.com/t/how-to-merge-large-pst-files-into-a-single-outlook-data-file/7348/1 "2026-11-05T09:50:03Z")

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Using several large PST files may lead to the complication in managing your Outlook mailbox. In order to make it easier, you can use the software **[Kernel for PST Merge](https://www.nucleustechnologies.com/merge-pst/)**, which provides the function of consolidating multiple PST files in a single destination PST file. This application works not only with ANSI PST files but also with UNICODE PST files and gives users the possibility to merge only certain folders instead of merging all of them. The tool also includes functions such as duplicates elimination, date range, and merging password protected PST files.