This page contains information on the MSG file extension (Encapsulated email message), a popular video file format

MSG MSG (Document)

File extension .msg
Category Document File
Description MSG was originally designed for the Microsoft Exchange mail document, this format is widely used by all of Microsofts infrastructure solutions. MSG files consist of main message body, calender, contacts and reminders, these are arranged in a hierachial directory structure and underpinned by MAPI (Microsofts Messaging Application Programming Interface).
Technical Details A MSG file are often formed by Outlook Express of Microsoft Outlook. They are saved as COM structured storage OLE2 compound documents and consist of several streams with sub tags. A MSG file maybe encoded in either Binary or ASCII.
Associated programs
  • Microsoft Outlook
  • Priasoft MSG File Viewer and Assessor
  • Encryptomatic MsgViewer Pro
Developed by Microsoft
MIME type
  • application/
Useful links

MSG Convert MSG file

Using Zamzar, it is possible to convert MSG files to a variety of other formats

MSG Converter Document