| File Extension: | WJ3 |
| File Type Description: | Lotus 1-2-3 Worksheet File |
| File Type Developer: | IBM |
| Primary Associated Software: | Lotus 1-2-3 |
| Primary Software Developer: | IBM |
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IBM developed the Lotus 1-2-3 Worksheet File file type when the Lotus 1-2-3 was initially released. According to our internal data, Lotus 1-2-3 Worksheet File files are most popular with users in United States, with a majority of them running Windows 10. Frequently these users are visiting our web site using Google Chrome.
 | Lotus 1-2-3 by IBM |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
 | Mac |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .WG1 | IBM | Spreadsheet Files | Lotus 1-2-3 Worksheet File |
| .BNF | IBM | Data Files | IBM Voice Type Languages Map Data |
| .KYR | IBM | Uncommon Files | Lotus Domino Key Ring File |
| .PTL | IBM | Developer Files | Rational Rose Petal File |
| .STI | Oracle Corporation | Data Files | StarOffice Presentation Template |
| .DMD | Oracle Corporation | Developer Files | SQL Developer Data Modeler File |
| .17 | IBM | Data Files | IBM Voice Type Languages Scripts Data File |
| .PRP | IBM | Data Files | Rational Model Properties File |
| .MDL | MathWorks | Data Files | MathWorks Simulink Model |
| .MBOX | Unknown Developer | Data Files | E-mail Mailbox |
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