A WK4 file is a spreadsheet file format associated with Lotus 1-2-3, a historical spreadsheet software developed by Lotus Development Corporation. The WK4 file format is an extension used for spreadsheet files created and saved in Lotus 1-2-3 version 4.x. Similar to WK1 and WK3 files, WK4 files contain data organized in rows and columns, including numerical data, formulas, text, and formatting.

What is a WK4 File?

A WK4 file is a spreadsheet file that represents a workbook in Lotus 1-2-3 version 4.x. Lotus 1-2-3 was widely used in the 1980s and 1990s, and WK4 files may contain more advanced features compared to earlier versions, providing additional capabilities for data organization and analysis.

How to Open WK4 Files:

Opening WK4 files can be challenging in modern times, as Lotus 1-2-3 is considered outdated and no longer widely supported. However, there are still a few methods to access the data within WK4 files:

1. Use Lotus 1-2-3:

2. Convert to a Modern Format:

3. Use Spreadsheet Software:

Various Apps that Use WK4 Files:

While WK4 files are associated with a legacy spreadsheet application, here are some tools and methods that may help you work with WK4 files:
Lotus
Microsoft Office
progeCAD Professional
IBM Lotus
Untis