Split wk4 sheets

Download and install the latest version of Filestar.
Right click on one or more Wk4 file(s) on your desktop and select Convert with Filestar.
Type split sheets in the search box.
Press Split.

What is .wk4?

Name: Lotus 4 Worksheet
Extension: .wk4
Format: Binary
Category: Spreadsheet
Developer: IBM
Description: Lotus 4 Worksheet is a spreadsheet file created with Lotus 1-2-3 version 4, a spreadsheet software program. It stores data as a series of worksheets and supports features such as formulas, charts, and graphs. It is used to store and analyze numerical data.
MIME Type: application/vnd.lotus-1-2-3

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Last updated October 3, 2026