Split wk3 sheets

Download and install the latest version of Filestar.
Right click on one or more Wk3 file(s) on your desktop and select Convert with Filestar.
Type split sheets in the search box.
Press Split.

What is .wk3?

Name: Lotus 3 Worksheet
Extension: .wk3
Format: Binary
Category: Spreadsheet
Developer: IBM
Description: Lotus 3 Worksheet (WK3) is a spreadsheet file format used by the Lotus 1-2-3 software. It stores tabular data and formulas in rows and columns and is used for data analysis and calculations.
MIME Type: application/vnd.lotus-1-2-3
Wikipedia: .wk3 on Wikipedia

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Last updated October 3, 2026