How to convert WK1 to XLS
- Add your .WK1 file - drop it in the box above or click to browse.
- Convert it to .XLS in a few seconds.
- Download your new .XLS file.
What to expect
- Cell values, formulas, and multiple sheets are preserved in the XLS workbook, unlike a flat CSV.
- Lotus 1-2-3 functions or formatting without an Excel equivalent may be converted approximately or dropped.
- XLS is the legacy binary Excel format, superseded by XLSX since 2007 but still broadly readable.
Frequently asked questions
How faithfully does WK1 convert to XLS?
Cell values, most formulas, and basic formatting transfer into the Excel 97-2003 binary workbook. Some Lotus-specific functions or formatting may be approximated, since the two formats come from different software lineages.
Why convert WK1 to XLS?
Modern Excel dropped WK1 support in 2007, but it still reads the legacy XLS format. Converting brings the old Lotus data into a form that Excel, Google Sheets, and LibreOffice all open.
Where can I open an XLS file?
In Microsoft Excel, Excel for the web, Google Sheets, and LibreOffice Calc - all without special add-ins. XLS is the older binary Excel format but remains widely supported.
Is XLS the best modern target?
It is compatible but dated; the ZIP-based XLSX replaced it in 2007. Choose XLS when you specifically need the legacy binary format, otherwise XLSX or ODS is more current.
Programs that convert WK1: Microsoft Excel · Corel Quattro Pro · LibreOffice Calc · OpenOffice.org Calc · PrimoOnline
