Types of WK Files

Primary WK File Association

.WK

File Format:	.wk
File Type:	Lotus

Created by:	Lotus Development Corporation
File Category:	Spreadsheet Files
Registry Key:	HKEY_CLASSES_ROOT\.wk

Software Programs That Open The Lotus:

Lotus by Lotus Development Corporation

Windows

Lotus Spreadsheet by IBM

Windows

Optional Offer for FileViewPro by Solvusoft | EULA | Privacy Policy | Terms | Uninstall

Troubleshooting Problems Opening WK Files

Common Problems Opening WK Files

Lotus Spreadsheet is Not Installed

When you double-click your WK file, you may see a dialog box from your operating system stating that it "Cannot Open This File Type". If this is the case, it's usually due to the fact that you do not have Lotus Spreadsheet for %%os%% installed on your computer. Because your operating system doesn't know what to do with this file, you won't be able to open it by double-clicking.

Tip: If you know of another program that can open your WK file, you can try opening it by selecting the application from the programs listed.

Wrong Version of Lotus Spreadsheet is Installed

In some cases, you might have a newer (or older) version of a Lotus file that is unsupported by your installed application version. If you do not have the proper version Lotus Spreadsheet (or any of the other programs listed above), you may need to try downloading a different version of it, or one of the other software applications listed above. This problem is most common when you have an older version of the software application, and your file was created by a newer version that it cannot recognize.

Tip: Sometimes you can get a clue about the version of WK file you have by right clicking on the file, then clicking on "Properties" (Windows) or "Get Info" (Mac OSX).

Summary: In either case, the majority of problems opening WK files are related to not having the correct software application installed on your computer.

Other Causes of WK File Opening Problems

Although you might already have Lotus Spreadsheet or another WK-associated software installed on your computer, you can still encounter problems opening Lotus files. If you are still having problems opening WK files, there may be other issues that are preventing you from opening these files. These other problems include (listed in order from most to least common):

• Invalid WK file references in the Windows Registry (the "phonebook" of the Windows Operating System)
• Accidental deletion of the description of the WK file in the Windows registry
• Incomplete or bad installation of a software application associated with the WK format
• Your WK file is corrupted (issues with your Lotus file itself)
• Your WK is infected with malware
• Device drivers of the hardware associated with your WK file are corrupt or out-of-date
• Your computer does not have the adequate system resources to open the Lotus format