WK4 File Type

- The quick facts

What are WK4 files and how to open them

Are you having problems opening a WK4 file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a WK4 file?

A .WK4 file is a Lotus 123 Worksheet file.

Files with the .wk4 file extension are most commonly associated with version 4 of the Lotus 1-2-3 spreadsheet software. Spreadsheets created with this software store data in cells that are organized into columns and rows. These spreadsheets are commonly used for data entry and accounting purposes. Spreadsheets created with the software are saved with the .wk4 file extension.

How to open WK4 files

Important: Different programs may use files with the WK4 file extension for different purposes, so unless you are sure which format your WK4 file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested 10 different WK4 openers which you will find listed below.

Last updated: March 17, 2022

Suggest another file format using extension WK4

While we know of one file format using the .WK4 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 .WK4 file.

Various apps that use files with this extension

These apps are known to open certain types of WK4 files. Remember, different programs may use WK4 files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Microsoft OfficeMicrosoft OfficeUser submitted
progeCAD ProfessionalprogeCAD ProfessionalUser submitted
IBM LotusIBM LotusUser submitted
LotusLotusUser submitted
LotusLotusUser submitted
TimetableTimetableUser submitted
123W123WUser submitted
GnumericGnumericUser submitted
Lotus MultiMediaLotus MultiMediaUser submitted
SingularLogic Report ViewerSingularLogic Report ViewerUser submitted