Old Lotus 1-2-3 program used .wk1 spreadsheets in one of its versions and its not something you would encounter in modern programs. Some programs may still support this format, but it is likely something that was available only in old versions. We list some of the software known to support the saving of .wk1 files from Excel spreadsheets.
Home > Search converters: xlsx to wk1
Conversion of xlsx file format to wk1 file format beta
Search for xlsx to wk1 converter or software able to handle these file types.
Convert Microsoft Excel Open XML workbook and spreadsheet to Lotus 1-2-3 version 2.x spreadsheet.
We have found 4 software records in our database eligible for .xlsx to .wk1 file format conversion.
Microsoft Windows software 
- convert xlsx to wk1 on Windows
Microsoft Excel
A popular spreadsheet application distributed with Microsoft Office suite
File extension | Convert | Open | Save | Edit | Create | Import | Export | Extract |
|---|---|---|---|---|---|---|---|---|
Convert from xlsx file | Yes, Microsoft Excel supports xlsx file conversion as a source file type. | Yes | Yes | xlsx editor | Yes | No | No | No |
to wk1 file | Yes, Microsoft Excel supports wk1 file conversion as a target file type. | Yes | Yes | wk1 editor | No | No | No | No |
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned xlsx to wk1. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
Corel Quattro Pro
A spreadsheet software application from Corel
Multiplatform software 
- convert xlsx to wk1 on any platform
Apache OpenOffice Calc (OpenOffice.org Calc)
Spreadsheet program from OpenOffice.org productivity suite
LibreOffice Calc
Full-featured spreadsheet tool from LibreOffice suite
Additional links: Open xlsx file, Open wk1 file
XLSX
Files with xlsx extension are s used by Microsoft Excel for its workbooks (spreadsheets) in Office Open XML format. XLSX is the latest spreadsheet format used by Excel with the adoption of XML formatting first used in Office 2007. While older xls files were in proprietary binary file format, xlsx spreadsheets use a somewhat altered XML scheme.
WK1
Files with wk1 extension are spreadsheets saved in old Lotus 1-2-3 office program. These files were used in version 2.X.
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