Explain How to Migrate ANSI PST files into Unicode PST files?

by Herry Potar Artical writng


Microsoft Outlook frequently uses Personal Storage Table files to store email messages, contacts, calendar items, and other data. PST files in early versions of Outlook were created in ANSI format, which had constraints such as a maximum file size of 2GB. Newer versions of Outlook, on the other hand, introduced the Unicode PST format, which provides more storage space and better interoperability. If you have an older ANSI PST file that has to be converted to Unicode, this tutorial will help you through the procedure step by step.


What is ANSI PST files and Unicode PST file?

ANSI PST Files: ANSI PST files are the older and more limited file formats used in earlier versions of Outlook, such as Outlook 97-2002. ANSI stands for American National Standards Institute. These files have a maximum size limit of 2 GB and use a character encoding called ANSI, which primarily supports English and other Western languages. ANSI PST files have limitations when it comes to handling non-Latin characters and larger mailbox sizes.

Unicode PST Files: Unicode PST files are the newer and more advanced file format introduced in Outlook 2003 and used in subsequent versions, including Outlook 2007, 2010, 2013, 2016, and 2019. Unicode is a character encoding standard that supports a much broader range of characters from different languages and scripts, including complex scripts like Chinese, Japanese, Arabic, and others. Unicode PST files have a much larger maximum size limit, which is 50 GB by default but can be increased if needed.

What Benefits to Migrate ANSI PST file into Unicode PST file?

Migrating an ANSI PST file to a Unicode PST file offers several benefits. Here are some key advantages of upgrading to Unicode:

Increased Storage Capacity: ANSI PST files have a maximum size limit of 2 GB in older versions of Outlook. In contrast, Unicode PST files, introduced in Outlook 2003 and onwards, have a much larger size limit of 20 GB or 50 GB. This allows you to store a significantly larger volume of email data and attachments in a single PST file.

Improved Performance: Unicode PST files offer better performance compared to ANSI PST files. With larger storage capacity and improved indexing structures, searching, accessing, and managing emails becomes faster and more efficient. You'll experience quicker load times and reduced lag when working with a large number of emails.

Enhanced Compatibility: Unicode PST files are now compatible with the most recent versions of Microsoft Outlook, including Outlook 2010, 2013, 2016, 2019, and Microsoft 365. Migrating to Unicode PST ensures smooth compatibility and seamless data transfer if you plan to use Outlook on a newer version or across several devices.

Support for International Characters: When it comes to processing international characters, such as those used in non-English languages or special characters, ANSI PST files have limitations. Unicode, on the other hand, supports a diverse set of characters and alphabets, making it ideal for multilingual communication. Migrating to Unicode allows you to appropriately store and display these characters.

Enhanced Data Integrity: Unicode PST files provide a more robust data structure and provide greater data integrity features. This features better error checking, error repair, and data corruption resistance. You lower the danger of data loss or file corruption by moving to Unicode, ensuring the long-term integrity and reliability of your email data.

It should be noted that the migration process entails producing a new Unicode PST file and importing the contents of the old ANSI PST file.

Expert Solution Migrate ANSI PST files into Unicode PST files

The Softaken Upgrade PST Tool is a reliable and user-friendly solution designed to upgrade PST files from the outdated ANSI format to the more advanced Unicode format. With its intuitive interface and powerful features, this tool simplifies the entire process and ensures a hassle-free upgrade. ANSI is an 8-bit character encoding standard that was previously widely used to represent text in Windows-based applications.

  • Follow these steps to convert ANSI PST files into Unicode PST file:
  •  Download the ANSI to Unicode converter software
cs browse pst file
  • Launch the app and select ANSI files by browsing in File or Folder Mode
preview pst files
  • Choice the output location and hit browse.
  • Final Press the “Start Converting” button
convert to unicode


By converting ANSI PST files to Unicode PST files, you can circumvent size constraints and increase compatibility with subsequent versions of Microsoft Outlook. You can securely and successfully transfer your data to the Unicode format by following the step-by-step process mentioned above, assuring a seamless transition and continuing access to your critical information. To avoid data loss, always create a backup of your data before beginning any conversion procedure.

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About Herry Potar Junior   Artical writng

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Joined APSense since, June 27th, 2023, From New York, United States.

Created on Jun 29th 2023 01:43. Viewed 127 times.


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