.wk4

File Type Generic IconLotus 4 Worksheet
File Format Proprietary (IBM)
Usage Open manually
Rank ★ ☆ ☆  Uncommon
Description

Spreadsheet created by Lotus 1-2-3, version 4; stores data in cells, which are organized into rows and columns; may be used for a variety of data-entry purposes.

As of March 30, 2009, the current version of Lotus 1-2-3 is Release 9.8.

Important: WK4 files are not supported by Excel 2007 and later.

Open With
Windows

IconIBM Lotus 1-2-3

IconLotus 1-2-3 WK4 File Converter

IconCorel Quattro Pro

macOS

IconIBM Lotus 1-2-3

IconLotus 1-2-3 WK4 File Converter

Unix

IconGnumeric

Updated March 18, 2010
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