The .mar file extension is related to the Pegasus Mail an e-mailing service for MS-DOS and Windows.
MAR file extension - Pegasus Mail attribute record file
What is mar file? How to open mar files?
File type specification:
The MAR file extension is related to Pegasus Mail, one of the oldest e-mail systems still on market.
A *.mar file contains attributes records per user for messages in "Public Folders" (called also Systemwide-folders in previous versions).
The default software associated to open mar file:
Company or developer:
David Harris
Pegasus Mail is one of the Internet's longest-serving PC e-mail system used on Windows.
List of recommended software applications associated to the .mar file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open mar file, edit mar file, convert mar file, view mar file, play mar file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with mar file - Pegasus Mail attribute record file
Click on the software link for more information about Pegasus Mail. Pegasus Mail uses mar file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).