How to open WK1 files

Did your computer fail to open a WK1 file? We explain what WK1 files are and recommend software that we know can open or convert your files.

What is a WK1 file?

The WK1 file extension indicates to your device which app can open the file. However, different programs may use the WK1 file type for different types of data.

We are aware of 1 different use of the WK1 extension, which you can read more about below.

Lotus 123/Symphony Worksheet (V2)

Through our analysis of WK1 files, we know that one use of the format is Lotus 123/Symphony Worksheet (V2). We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

We have not verified any programs yet that works with this specific format. If you know any, please use the 'Suggest a program' link below. Thanks!

Software that will open, convert or fix WK1 files

These apps are known to open certain types of WK1 files. Since many different programs may use WK1 files for different purposes, you may need to try a few of the apps to open your specific WK1 file.

OpenOffice.org CalcOpenOffice.org CalcUser submitted
LibreOfficeLibreOfficeUser submitted
LibreOffice CalcLibreOffice CalcUser submitted
StarOffice CalcStarOffice CalcUser submitted
Parallels Tools CenterParallels Tools CenterUser submitted
StarSuite CalcStarSuite CalcUser submitted
BrOffice.org CalcBrOffice.org CalcUser submitted
Any Video Converter ProfessionalAny Video Converter ProfessionalUser submitted
LotusLotusUser submitted
Office Suite XOffice Suite XUser submitted
We have not verified any programs that we know for certain can work with WK1-files on Mac. If you know one, please use the Suggest link below and tell us about it!
We have not verified any online services that we know for certain can work with WK1-files. If you know one, please use the Suggest link below and tell us about it!