An mrf file extension is related to the font format used by old programs for Macintosh computers.
MRF file extension - Macintosh font
What is mrf file? How to open mrf files?
Macintosh font; Font (vector /tbv). Probably used on older versions of Macintosh operating system.
Most likely some old format without support from the developer. No further information could be found.
This mrf file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.
The default software associated to open mrf file:
Company or developer:
Apple, Inc.
macOS is Unix-based desktop operating system, a successor of Mac OS X system for MacBook-family, iMac, Mac Mini and Mac Pro computers, developed and sold by Apple, Inc.
Company or developer:
Apple, Inc.
OS X or Mac OS X is Unix-based operating system developed by Apple Inc. for Macintosh computers. It contains basic core applications for everyday use, such as Finder basic file manager, Safari for Internet browsing, QuickTime for video, iTunes for managing audio data and iPod, iOS devices management , iMessage instant messaging, Mail, Contacts, Calendar and many more.
The latest version 10.11 of OS X is called El Capitan. It is available to purchase on Mac App Store as well as is distributed with new Mac computers and notebooks. It includes features to improve the security, performance, design and usability.
OS X operating system was replaced by new macOS in 2016!
List of recommended software applications associated to the .mrf 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 mrf file, edit mrf file, convert mrf file, view mrf file, play mrf file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with mrf file - Macintosh font
Click on the software link for more information about macOS. macOS uses mrf 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.).