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?

WK1 files are Lotus 123/Symphony Worksheet files, which you can read more about below.

The WK1 file extension indicates to your device which app can open the file. However, different apps may use the same file extension for different types of data. So a WK1 opener may not be able to open all kinds of WK1 files. In this case, though, we only know of one specific use.

Lotus 123/Symphony Worksheet

Through our analysis of WK1 files, we know that one use of the format is Lotus 123/Symphony Worksheet . 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!

WK1 file openers, viewers, etc.

These apps are known to open certain types of WK1 files. Remember, different programs may use WK1 files for different purposes, so you may need to try out a few of them to be able to open your specific file. CalcUser submitted
LibreOfficeLibreOfficeUser submitted
LibreOffice CalcLibreOffice CalcUser submitted
StarOffice CalcStarOffice CalcUser submitted
Microsoft OfficeMicrosoft OfficeUser submitted
Microsoft ExcelMicrosoft ExcelUser submitted BaseUser submitted
Stuffit ExpanderStuffit ExpanderUser submitted
OOo4Kids CalcOOo4Kids CalcUser submitted
Complete OFFICE NumerateComplete OFFICE NumerateUser 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!