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WK1 File Extension

WK1 file extension is created by IBM, also known as Lotus Worksheet. WK1 has been classified as Data Files. This File type categories under Zip, Text, Binary and XML, however, the format of this file format has not been determined yet. You can open WK1 files in OpenOffice Calc program.

Lotus Worksheet File Type

Lotus Worksheet File Type
Extension .wk1
Developer IBM
Popularity 5.0 (4 Votes)
Mime Type application/x-123
Default Program OpenOffice Calc
Category Data Files
Format Binary
Updated 6/1/2024

What is a WK1 File Type?

Lotus 1-2 is included in Lotus SmartSuite, which was acquired by IBM in 1995.

WK1 files may be opened in some versions of Microsoft Excel. Some formatting information may be lost during the conversion process. Excel 2007 and later do not support WK1 files anymore.

Free online WK1 Tools & Apps

We have also the free online .WK1 (Lotus Worksheet) file extension apps that can allow to view, edit, convert from to WK1, merge, split and compare the WK1 files without installing anything on your system. Please click on the links to explore the complete list of details for each required feature.

WK1 Files Common Issues

There are few common issues with the Lotus Worksheet .WK1 File Extensions while opening the .WK1 files on Windows and MacOs, we have solution to those issues such as:

Can't Open WK1 Files?

  1. You must have supported software programs installed for Lotus Worksheet on your system such as OpenOffice Calc.
  2. Associate default Openoffice Calc OpenOffice Calc program for *.wk1 (Lotus Worksheet) files.

    Associate WK1 Default Program on Windows
    1. Right-click a *.WK1 (e.g example.wk1) file and click Open With.
    2. In the Open with dialog box, click Openoffice Calc OpenOffice Calc program Or click Browse to locate the program (*.exe) that you want.
    3. Select check box for Always use this app to open .wk1 files.

    Associate WK1 Default Program on MacOs
    1. Click *.WK1 (e.g example.wk1) file and click information -> Open With.
    2. In the programs list, click Openoffice Calc OpenOffice Calc program Or other appropriate program that you want.
    3. Confirm Change for all... and Contine.
    4. A message will appear "This change will be applied to all files with .OpenOffice Calc extension. By clicking Continue you confirm your selection", click Contine to apply changes.

Related WK1 File Extensions

WK1 default file extension is .WK1 and other similer related extensions are:

All Platform Software Programs for WK1 File Extension

List of all softwares that can open the WK1 files on each platforms such as Windows, Mac, iOS, Linux, Web and Android, you may click the each software link for more details for other supported formats for each software and the verified direct download links for each software with complete lisensing details.

Microsoft Windows logo image Open WK1 File on Windows

Software License Developer
Microsoft Excel image. Microsoft Excel 365 for Windows Commercial Microsoft
Gnumeric image. Gnumeric 1 for Windows Open Source Gnumeric
Corel Quattro Pro image. Corel Quattro Pro 2020 for Windows Commercial Corel

MacOs logo image - FileProInfo.comOpen WK1 File on Mac OS

Software License Developer
Microsoft Excel image. Microsoft Excel 365 for MacOs Commercial Microsoft
Microsoft Excel for Mac image. Microsoft Excel for Mac 2019 for MacOs Commercial Microsoft
Planamesa NeoOffice image. Planamesa NeoOffice 2017 for MacOs Commercial Planamesa

Linux logo image - FileProInfo.comOpen WK1 file on Linux

Software License Developer
Gnumeric image. Gnumeric 1 for Linux Open Source Gnumeric
OpenOffice Calc image. OpenOffice Calc 000 for Linux Free OpenOffice Calc

Website logo image - FileProInfo.comOpen WK1 file on Web

Software License Developer

iOS logo image - FileProInfo.comOpen WK1 file on iOS

Software License Developer

Android logo image - FileProInfo.comOpen WK1 file on Android

Software License Developer

About Licensing

  1. Free Trial This software are often used for an attempt period, like 14 days, before requiring payment. Some trial versions have a reduced feature set.
  2. Free This software is liberal to use. Examples include open-source , freeware software, like free programs supported by advertising.
  3. Free+ This software is liberal to download and use, but contains in-app purchases (IAP) to unlock additional content or functionality.
  4. Paid This software must be purchased so as to use it. it's going to be offered as a perpetual license or ongoing subscription.
  5. Included with OS This software is bundled with an OS , like Windows, macOS, or Android.

WK1 file extension icon image.About WK1 - Lotus Worksheet

FileProInfo is to help you understand about the Lotus Worksheet with *.WK1 suffix, and provide the complete detail as how to open, edit, convert, merge, split and compare it with other related software programs, software download links and free online apps and tools.

Our professional team members at FileProInfo have been individually researched and verified the details for WK1. We want to be 100% accurate and publish the information about file formats, tools, apps and software programs that we have tested and validated.

If you would like to suggest any additions or updates to this page for WK1, please let us know.

Updated 6/1/2024

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