WK3 File - opening and understanding

Did your computer fail to open a WK3 file? We explain what they are used for and recommend software that we know can open or otherwise handle your .WK3 files.

What is a WK3 file?

A .WK3 file is a Lotus 123 Worksheet file. Through our analysis of WK3 files, we know that one use of the format is Lotus 123 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 WK3 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 WK3 for different purposes.

While we have not verified the apps ourselves yet, our users have suggested 10 different WK3 openers which you will find listed below.

Suggest another file format using extension WK3

While we know of one file format using the .WK3 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 .WK3 file.

Various viewers for this file format

These apps are known to open certain types of WK3 files. Remember, different programs may use WK3 files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Integrated Software PackageIntegrated Software PackageUser submitted
IBM LotusIBM LotusUser submitted
LotusLotusUser submitted
Microsoft OfficeMicrosoft OfficeUser submitted
LotusLotusUser submitted
Source InsightSource InsightUser submitted
123W123WUser submitted
Lotus MultiMediaLotus MultiMediaUser submitted
1-2-31-2-3User submitted
5 Dias Appllication5 Dias AppllicationUser submitted
We have not verified any software that we know for certain will work with WK3-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 WK3-files. If you know one, please use the 'Suggest a program' link below and tell us about it!