Outlook Item File

File Format
Name	Outlook Item File
Ontology	Electronic File Formats E-Mail, newsgroups, and forums Outlook Item File
Extension(s)	.msg, .oft
PRONOM	x-fmt/430

Outlook Item File (or Outlook email message, Outlook saved mail, Outlook MSG, etc.) is a file format used by Microsoft Outlook for a saved individual item, such as an email message or appointment. It is based on Microsoft Compound File format.

Links

• MSDN: MS-OXMSG: Outlook Item (.msg) File Format