How to convert WK4 to XLSX
- Add your .WK4 file - drop it in the box above or click to browse.
- Convert it to .XLSX in a few seconds.
- Download your new .XLSX file.
What to expect
- Some Lotus
@functionshave no direct Excel equivalent and may appear as errors or static values after conversion - review formula cells. - Basic formatting and column widths carry over, but complex Lotus-era styles may not translate exactly to XLSX.
- Multi-sheet (3D) WK4 workbooks are preserved as multiple sheets in the output
.xlsxfile.
Frequently asked questions
Can Microsoft Excel open a WK4 file directly?
No. Microsoft removed the Lotus import filter in Excel 2007, so any modern version of Excel cannot open
.wk4 files - you need to convert first using LibreOffice Calc or the converter above.Will formulas still work after conversion?
Most standard formulas convert correctly to their Excel equivalents. Older Lotus-specific
@functions may convert to errors or plain values and should be reviewed manually.Can I batch-convert many WK4 files at once?
Yes - LibreOffice's command-line tool handles batch conversion with
libreoffice --convert-to xlsx *.wk4, processing all files in a folder without opening the GUI.Will I lose any data due to spreadsheet size limits?
No. WK4 supports at most 8,192 rows and 256 columns per sheet, both of which fit well within XLSX limits, so no data is lost due to grid size.
