WKI File Extension
Lotus 2 Worksheet
- File Type wki
- Developer IBM
- Popularity
- Application Lotus 1-2-3
- Category Spreadsheet Files
What is a WKI file?
The WKI extension is related to Lotus 2 Worksheet and is classified in the Spreadsheet Files category, which contains 113 files.
With the creation of the Lotus 2 Worksheet (WKI), IBM introduced file format along with 70 programs built for their use.
WKI files are compatible with various operating systems, including Windows, Mac OS and Linux. You can open a WKI file using one of 4 programs, for example Lotus 1-2-3, OpenOffice Calc and Microsoft Excel.
Programs that support WKI files
How to open a WKI file?
The most common reason why a WKI file cannot be opened is the absence of required software. To fix this, select a compatible program from the list. Then visit the official developer website via the provided link, download the program, and install it on your system.
Lotus 1-2-3, OpenOffice Calc and Microsoft Excel are among the most widely used programs for handling WKI files. If you wish to install the latest release of Lotus 1-2-3, visit the official IBM portal and download the edition that works on any operating system.
Following installation, WKI files should be automatically opened with Lotus 1-2-3.
Set Lotus 1-2-3 as the default WKI application
Change the default app that opens a file on Mac
- Right-click or use Control + Left-click on the desired WKI file to open a menu where you can choose from multiple actions;
- Choose "Open in Application" and click "Other";
- Look at the bottom of the window, where you will see the "Enable" menu. "Recommended Programs" will be selected as the default option;
- Within this menu select "All Programs" and navigate to Lotus 1-2-3. Check the box next to "Always open in app" to make sure it’s the default option.
Change default programs in Windows
- Start the process by right-clicking on your WKI file and selecting "Open With". From there, click "Choose another app" to continue;
- From the options listed in the pop-up window, specifically choose Lotus 1-2-3 as the application to handle your WKI file;
- Be sure to check the "Always use this app" checkbox and click "OK" to save your preference.
How to edit a WKI file?
To modify WKI files, it is necessary to install dedicated software that lets you open and edit spreadsheet files. Online WKI editors generally offer fewer tools compared to programs designed for Lotus 2 Worksheet.
Best WKI Editor Software in 2026
Taking into account the provided details, we have prepared a list of WKI editors that match your needs.
| WKI Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| Lotus 1-2-3 | IBM | Windows | 4.4 out of 5 (41 review) |
Convert files to and from WKI
If a WKI file is cumbersome, converting it to formats such as XLS or other supported types can make it easier to manage.
It is important to understand that converting a WKI file might limit certain functions, but this conversion is usually reversible.
Convert WKI to other file formats
Troubleshooting guide for WKI file complications
When issues arise with WKI files, they can generally be fixed with small software tweaks. Use the troubleshooting tips below to help resolve them.
What are the possible solutions to recover a corrupt WKI file?
Start a recovery program, open the damaged WKI file and then select the "Repair" menu item to start the repair procedure. Wait for the recovery process to finish, allowing automatic repair of damaged spreadsheet files.
How can I confirm if my WKI file has been damaged?
The signs of corrupted WKI spreadsheet files can manifest as:
- The file shows slow performance when edited in Lotus 1-2-3;
- The file stops responding or freezes in Lotus 1-2-3 or other programs;
- The file does not respond or shows errors when opening it;
- Unexplained WKI file size inflation;
- The file operation is accompanied by the display of error messages;
What are the possible causes of Lotus 1-2-3 crashing?
Lack of regular software updates can cause Lotus 1-2-3 to crash. Make sure you have installed the latest updates for IBM products.
Restarting your computer is a crucial troubleshooting measure that can alleviate numerous common problems. Therefore, it is advisable to restart your computer before modifying any settings related to the software.