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OST File Viewer

Open, print, analyze, and export OST files.

Views OST files without having Microsoft Outlook installed on your computer. Access such contents as emails, attachments, contacts, calendars, tasks, and even deleted items. Generate analysis reports, print OST files and export them as HTML or TXT files.


  • Allows accessing different types of data
  • Opens password-protected files
  • Creates log files


  • No option to convert OST files to other formats in the trial version
  • Developed by Aryson Technologies
  • File name: aryson-ost-viewer.exe (2.6 MB)
  • Latest version: 18.0
  • License: Free
  • Updated: January 18, 2021
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