12M file extension - Lotus Smartmaster file
What is 12m file? How to open 12m files?
File type specification:
12m file icon:
The 12M file extension is mainly related to Lotus 1-2-3 SmartMaster program and used for one of its default file types. Old program used in 80s and 90s.
The default software associated to 12m file type:
Company or developer:
IBM Lotus 1-2-3 is spreadsheet application very popular in 80s and 90s of 20th century. It was released for Microsoft Windows, MS-DOS, Mac OS and OS/2. In 2002 IBM stopped the developing of the IBM Lotus 1-2-3. In the latest versions is Lotus 1-2-3 fully compatible with Microsoft Excel.
List of recommended software applications associated to the .12m file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux etc.) and possible program actions
that can be done with the file: like open 12m file, edit 12m file, convert 12m file, view 12m file, play 12m file etc. (if exist software for corresponding action in File-Extensions.org's database).
- Others 12m file
Unspecified and all other actions for computer programs working with 12m file - Lotus Smartmaster file
Click on the software link for more information about Lotus 1-2-3. Lotus 1-2-3 uses 12m 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.).