Browse Definitions:
File Extension

MSG File Format

Mail message (Microsoft)

MSG file format icon

MSG is a file extension for a mail message file format used by Microsoft Outlook and Exchange.  An MSG file can contain plain ASCII text for the headers and the main message body as well as hyperlinks and attachments.  

MSG files may be exported for the purposes of archiving and storage or scanning for malware.

 

Learn more about MSG files:

Visit the Microsoft Outlook webpage.

Visit the Microsoft Exchange webpage.

Search for answers to MSG-related questions at IT Knowledge Exchange.

This was last updated in July 2010
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I was looking for an MSG viewer, so far I found only paid programs. I need the free one
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