WK1 File - opening and understanding

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

What is a WK1 file?

A .WK1 file is a Lotus 123/Symphony Worksheet file. 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.

How to open WK1 files

You will need a program compatible with the specific file you are trying to open, as different programs may use files with file extension WK1 for different purposes.

While we have not verified the apps ourselves yet, our users have suggested 10 different WK1 openers which you will find listed below.

Suggest another file format using extension WK1

While we know of one file format using the .WK1 file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .WK1 file.

Various viewers for this file format

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.

OpenOffice.org CalcOpenOffice.org CalcUser submitted
LibreOfficeLibreOfficeUser submitted
LibreOffice CalcLibreOffice CalcUser submitted
StarOffice CalcStarOffice CalcUser submitted
Microsoft OfficeMicrosoft OfficeUser submitted
Microsoft ExcelMicrosoft ExcelUser submitted
OpenOffice.org BaseOpenOffice.org BaseUser submitted
Stuffit ExpanderStuffit ExpanderUser submitted
OOo4Kids CalcOOo4Kids CalcUser submitted
Complete OFFICE NumerateComplete OFFICE NumerateUser submitted
We have not verified any software that we know for certain will work with WK1-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with WK1-files. If you know one, please use the 'Suggest a program' link below and tell us about it!