How to Open .123 files
Windows
Additional extension information
| File type: |
Data |
| Popularity: |
 Average |
| Author: |
Lotus / IBM |
| MIME type: | application/vnd.lotus-1-2-3
application/x-lotus123
zz-application/zz-winassoc-123
|
Other .123 file extensions
The .123 file extension belongs to Lotus 1-2-3, a spreadsheet application from Lotus Software which is now part of IBM.
These files contain your spread-sheet data.
Lotus 1-2-3 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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