.3 - IBM Voice Type languages scripts Data file
.fil - File template
.application - ClickOnce deployment manifest file
.mdf - Menu definition file
.mobi - Mobipocket eBook Format
.x_t - Parasolid document
._3 - Audio Utility Tuningwrench compressed file
.500 - FreeBSD file
file extension PMT - Pegasus Mail tray file
File extension PMT description:
Any file with this suffix relates to a Tray file. There is always (unless you started to use Pegasus Mail for Windows with version 3.x) at least one tray called MAIN.PMT used by Pegasus Mail to indicate the current folders; additional folders may be grouped together within another tray.
Associated applications to file extension PMT:
Company / developer:
David Harris
Pegasus Mail
Pegasus Mail is a free, standards-based electronic mail client suitable for use by single or multiple users on single computers or on local area networks. A proven product, it has served millions of users since it was released in 1990. It is extremely feature-rich and powerful, yet remains small and fast.

