How to Open .12M files
Windows
Additional extension information
| File type: |
Not specified |
| Popularity: |
 Not specified |
| Author: |
Lotus / IBM |
| MIME type: | Not specified |
File extension: .12M - Lotus 1-2-3 is a spreadsheet program from Lotus Software (now part of IBM).
It was IBM PC's first killer application; its huge popularity in mid-1980s contributed significantly to the success of IBM PC in the corporate environment.
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