There are 2 other file types using
the MAI file extension!

empty icon.mai - Microsoft Mail message

empty icon.mai - Sony video thumbnail file format

Detailed description

Software that open mai file

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MAI file extension - Pegasus mail sub directory

What is mai file? How to open mai files?

File type specification:

Internet related file type icon Internet related file type

These sub directories represent old-style message directories, from the early releases of Pegasus Mail. The use of these nowadays is in relation to system wide folders (called Public folders from version 4.20). The folder directory must contain a file called PMFOLDER.ID, which is a single NULL-terminated line representing the folder's long name. More information in the WGUIDE.HLP file in the program directory.

The default software associated to open mai file:

Pegasus Mail icon

Pegasus Mail  Microsoft Windows software

Company or developer:
David Harris

Pegasus Mail is one of  the Internet's longest-serving PC e-mail system used on Windows.

Help how to open:

Currently there is no specific information available, about how to open this file extension.

How to convert:

Currently there is no specific information available, about how to convert this file extension.

List of recommended software applications associated to the .mai 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 mai file, edit mai file, convert mai file, view mai file, play mai file etc. (if exist software for corresponding action in's database).

Unspecified and all other actions for computer programs working with mai file - Pegasus mail sub directory

Click on the software link for more information about Pegasus Mail. Pegasus Mail uses mai 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.).

Microsoft Windows:

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