File extension MSO (.MSO) information

Windows cannot open MSO files?

If Windows is unable to open file extension .MSO you may have registry related errors or may not have the appropriate program installed. We strongly recommend that you run a free registry scan.

Appropriate program:

The .MSO file extension is created when an email was sent which had been written with an inline attachment that had been drafted using Microsoft Word 2000. If you then try to open this email without using Outlook 2000 (or possibly later) you will find an additional attachment called oledata.mso. This contains additional information to allow other e-mail applications to view the e-mail correctly.. Incorrect associations are the cause of many file extension errors. Scan your system to prevent, identify and repair MSO file extension association errors.


  • Performance: To optimize memory and CPU usage for MSO files run a free performance scan.
  • Stability: Fix MSO errors to make your system and applications more stable.
  • Drivers: Scan your PC for the outdated drivers which lead to system errors and slowdowns.

You are currently viewing the detail page for ABF file extension. This page contains a detailed description of the ABF file type, software tools to help resolve file association errors in the Windows registry together with relevant system utility applications and other related information.