How to open a .WK3 file online
Three steps, a few seconds, no Excel.
Choose your .WK3 file
Drag your .WK3 file onto the box above, or click Choose file.
Supported
Your .WK3 file is opened: every sheet, formula and merged range.
Browse, search, export
Switch sheets, click a cell to see its formula, search the whole sheet and export it as CSV or JSON.
What is a .WK3 file?
Everything worth knowing about Lotus 1-2-3 version 3.x spreadsheet file files.
A .WK3 file is a Lotus 3 Worksheet developed by IBM. These data files contain spreadsheet information and are primarily associated with the Lotus 1-2-3 software. They can be opened and viewed using applications such as Microsoft Excel, Corel Quattro Pro, and ABC Amber Text Converter.
Programs that open .WK3 files
| Developer | IBM |
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Related viewers
Other free viewers for related formats.
Is my .WK3 file uploaded anywhere?
No. Your .WK3 file is opened for you.
Are formulas recalculated?
The viewer shows the values Excel or LibreOffice saved in the file, plus the formula behind each cell when you click it. It doesn't recalculate, so what you see is exactly what the author saw when saving.
Can I open a password-protected .WK3 file?
Not yet. Files encrypted with a password to open are detected and reported; sheets that are only "protected against editing" open normally.
Why doesn't my chart or image show?
This viewer focuses on cell data: values, formulas, merged cells and fill colours. Charts, images and pivot table layouts are not drawn yet.
How big a file can I open?
Up to 50 MB. Large sheets are shown 500 rows at a time so your browser stays fast. Search still covers every row.
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