Opening WK! Files

The WK! file type is primarily associated with 1-2-3.

WK!	File extension: WK!
	File type:	Speadsheet

What is a WK! file?

WK! files mostly belong to 1-2-3 by IBM. This was a Lotus product. Lotus was bought out by IBM.

How to open a WK! file

You need a suitable software like 1-2-3 to open a WK! file. You need a suitable software like 1-2-3 from IBM to open a WK! file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your WK! file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a WK! file directly in the browser:. Just drag the file onto this browser window and drop it.

Online WK! Text Viewer

Choose your .wk! file to analyze

or drag and drop it here

Online File Viewer

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Can't Open Your .WK! File? Try These Steps

WK! files can come from different programs and aren't universally openable.

Identify the Source: These files are typically legacy spreadsheets created by financial professionals or archivists using IBM's Lotus 1-2-3 software.
Check the Header: Open the file in a hex viewer to inspect the first few bytes.
- Hex 00 00 02 00 or 00 00 1A 00 indicates a Lotus 1-2-3 binary spreadsheet.
- Readable text or XML suggests a different, newer format.
Use the Original Software: You usually need the original program to open it properly; try IBM Lotus 1-2-3, Corel Quattro Pro, or older versions of Microsoft Excel. If uncertain, ask the sender.
Use this Webpage: Drag and drop your file into our viewer above to detect its format, extract readable metadata, and preview the contents.

Technical Data for WK! File Extension

File classification:

Spreadsheet

Related files:

wk%21, wk1, fms, wk3

a wk! Speadsheet is a special file format by IBM and should only be edited and saved with the appropriate software.

How to solve problems with WK! files

Associate the WK! file extension with the correct application.
Update your software that should actually open speadsheets. Because only the current version supports the latest WK! file format. Search, therefore, e.g. on the IBM manufacturer website after an available 1-2-3 update.
To make sure that your WK! file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .WK! file online - secure, fast, and no downloads needed.