.wk1 Spreadsheets
How to open a .wk1 file
Lotus 1-2-3 Worksheet (Release 2)
The spreadsheet that made the IBM PC a business machine. Also covers Lotus Symphony worksheets.
- Full name
- Lotus 1-2-3 Worksheet (Release 2)
- Made by
- Lotus
- Era
- 1985-1990
- Family
- Spreadsheets
- Also seen as
- .wks, .wk2, .wr1, .wrk
- Converts to
- xlsx · pdf · ods · csv
- Detection
- Recognised from the file's bytes, even if renamed
Convert .wk1 to XLSX or PDF online
Free, no install, no account. The file is deleted from our servers after 3 hours.
Drop your .wk1 file here
or click to browse. One file at a time, up to 500 MB.
Your file is processed in a private workspace and deleted after 3 hours.
What survives the conversion
Values, formulas and formats convert; macros are dropped. Formulas are recalculated on import.
Other ways to open .wk1 files
- LibreOffice Calc
- Excel 2003 and older
Related spreadsheets formats
- .xlsExcel 2/3/4 Worksheet (BIFF2-4)1987-1994
- .wk3Lotus 1-2-3 Worksheet (Release 3/4)1989-1997
- .wksMicrosoft Works Spreadsheet1988-2009
- .123Lotus 1-2-3 Workbook (97 / Millennium)1997-2002
- .wq1Quattro Pro for DOS Spreadsheet1989-1996
- .wb1Quattro Pro for Windows Notebook1992-2000s
- .numbersApple Numbers Spreadsheet2007-present
- .sxcStarOffice / OpenOffice.org 1.x Calc1999-2005