Open 12M file

Data associated with the Smartmaster feature in the Lotus software suite

How to open 12m files?

12m file icon Have you had trouble opening the 12m file on your computer? What are 12m files? We explain what they are and recommend software that we know will open them.

What is 12m file?

Files with 12m extension could be found as part of old Lotus 1-2-3 suite in a program called SmartMaster.

Data associated with the Smartmaster feature in the Lotus software suite description

The 12m file extension is mainly related to Lotus 1-2-3 SmartMaster program from IBM and used for one of its default file types.

Old program used in 80s and 90s.

Suggested software to open 12m file

Lotus 1-2-3

Old spreadsheet program from IBM

What file extension actually is?

Simply put, file extensions are the characters after the dot in the computer file name, so for example document-name.pdf has file extension „pdf“. This helps Windows to identify which program should be used to open the file.

We can help you to open your file

Our database contains a huge list of different file extensions, usually with detailed description and programs that can be used to open or otherwise work with that particular file type.

Only original software

Every software listed in our database is verified and ve provide link to the developer or to the software own website, which should hopefuly be enough for you to download the most recent version of the program.