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WK1 File

What are WK1 files and how to open them

Are you having problems opening a WK1 file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your WK1 files.

What is a WK1 file?

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

We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

How to open WK1 files

Important: Different programs may use files with the WK1 file extension for different purposes, so unless you are sure which format your WK1 file is, you may need to try a few different programs.

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

Last updated: February 24, 2023

Various apps that use files with this extension

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 CalcDiscontinued
Microsoft OfficeMicrosoft OfficeUser submitted
Microsoft ExcelMicrosoft ExcelUser submitted
OpenOffice.org BaseOpenOffice.org BaseUser submitted
LotusLotusUser submitted
TableurTableurUser submitted
Integrated Software PackageIntegrated Software PackageUser submitted

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about WK1 file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.