Lotus 1-2-3 Worksheet 4-5
Readablespreadsheet
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| Extensions | .wk4 |
|---|---|
| MIME types | application/lotus123application/vnd.lotus-1-2-3 |
| Signatures | 00001a0002100400 at byte 0 (Lotus 123 Worksheet 4.0-5.0) |
| PRONOM | x-fmt/116 |
| Wikidata | Q45347570 |
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From PRONOM, Wikidata. Updated 2026-10-20.