| File Extension: | WK4 |
| File Type Description: | Lotus Lotus 1-2-3 V4 Worksheet |
| File Type Developer: | IBM |
| Primary Associated Software: | Gnumeric |
| Primary Software Developer: | Open Source |
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Open Source created the Lotus Lotus 1-2-3 V4 Worksheet (WK4) file for the Gnumeric software series. User statistics infer that these WK4 files are popular with users from United States and most frequently found on the Windows 10 platform. Most of these users are running the Google Chrome web browser.
 | Gnumeric by Open Source |
 | Lotus 1-2-3 by IBM |
 | Corel Quattro Pro by Corel |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
 | Mac |
 | Linux |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .GIM | Sony | Raster Image Files | PlayStation Portable Image File |
| .MIF | Adobe Systems Incorporated | Page Layout Files | FrameMaker Interchange Format File |
| .RL4 | Various Developers | Raster Image Files | Bitmap Image File |
| .MPI | Open Source | Data Files | InstallJammer Project File |
| .RPG | Open Source | Uncommon Files | Programming Language Source Code File |
| .FDS | Adobe Systems Incorporated | Data Files | JetForm FormFlow Data File |
| .MRF | Apple | Font Files | Macintosh Font File |
| .GTP | Ucamco | Data Files | Gerber Top Solder Paste Data File |
| .P01 | HERE | Uncommon Files | HERE Maps For Android Map Data Package |
| .17 | IBM | Data Files | IBM Voice Type Languages Scripts Data File |
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