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WK1 WK2
File conversion

Convert WK1 to WK2

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Is it possible to convert WK1 to WK2?
Yes - WK1 converts to WK2.

WK2 was an intermediate Lotus version format; rarely encountered. Gnumeric supports writing WK2 but there is almost no reason to do so today.

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Last verified Sep 2026

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How to convert WK1 to WK2

Converting a .WK1 file to .WK2 lets you open the content in software that prefers the .WK2 format, though some details may change compared with the original. The programs listed below open .WK1 files and can save or export them to .WK2 (or a closely related format). One of them is Lotus 1-2-3: Lotus 1-2-3 was a spreadsheet application originally developed by Lotus Development Corporation and later maintained by IBM after its acquisition of Lotus. It….

A full step-by-step guide for this conversion is on the way; the information above is drawn straight from our database.

Programs that convert WK1

Lotus 1-2-3

About these formats

.WK1 Lotus 1-2-3 Release 2 Worksheet

A WK1 file is a spreadsheet created by Lotus 1-2-3 Release 2.x for DOS (1985). Modern Microsoft Excel cannot open it - support was removed in Excel 2007. Use the free LibreOffice Calc or…

Open .WK1 details →
.WK2 Lotus 1-2-3 version 2 spreadsheet file

A .WK2 file is associated with Lotus 1-2-3 version 2 spreadsheet, a data file.

Open .WK2 details →