How to Migrate many Outlook ANSI PST files to Unicode PST files?

Yes, users can convert most ANSI PST files to Unicode PST files. It is very easy to do it with the OSTTOPSTAPP ANSI to Unicode Converter. This application is lightweight. However, Unicode PST files are compatible with Windows 11, Windows 10, and Vista, as well as with Windows Server. The best way to convert an ANSI PST file to a Unicode PST file is to use this tool. This software is effective. It has no file size restriction for Unicode and can create very big Unicode PST files. It facilitates change without trouble. All Microsoft Outlook versions are supported, including 2021, 2019, 2016, 2013, 2010, 2007, and 2000.

Edited by: Minseok Jang on 26 Mar, 2023


2 Replies
thoms renk

If you want to convert old ANSI PST files to Unicode PST files, then you can use the Sysessential PST Upgrade Program. This application works very safely and fast, its users can easily convert ANSI PST files to Unicode PST files and save time. The Unicode PST file size is unlimited. The user can store a lot of data in a Unicode PST file. It also works on all Windows OS versions and servers. It has the following properties: notes, tasks, messages, contacts, emails, attachments, and events. This software can be run by both non-technical and technical users. This application converts healthy ANSI PST files quickly and easily


Peter Groft

Migrating Outlook ANSI PST files to Unicode PST files involves exporting the contents of the ANSI PST file into a new Unicode PST file. Here are the steps:

Open Microsoft Outlook.

Click on "File" in the top-left corner and then click on "Open & Export".

Click on "Import/Export".

In the Import and Export Wizard, select "Export to a file" and then click "Next".

Select "Outlook Data File (.pst)" and then click "Next".

Select the ANSI PST file you want to migrate and select the checkbox to "Include subfolders" if you want to include all folders within the PST file.

Choose the location where you want to save the new Unicode PST file, and give it a name.

Under "Options", select "Replace duplicates with items exported" to avoid duplicates.

Click "Finish" to begin the export process.

Once the export is complete, you will have a new Unicode PST file with all the data from the original ANSI PST file.

Open the new Unicode PST file in Outlook to ensure that all the data was successfully migrated.

By following these steps, you should be able to migrate an Outlook ANSI PST file to a Unicode PST file. Repeat the steps for each ANSI PST file you want to migrate.