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.WK2 File Extension

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File TypeLotus 2 Worksheet

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Rare Uncommon Average Common Very Common
CategoryData Files


This file is saved in a binary format, which requires a specific program to read its contents.


Spreadsheet created by Lotus 1-2-3, version 2, a spreadsheet program; contains data as a grid of rows and columns; supports text, numbers, formulas, and other types of data; used to store and organize data.

More Information

NOTE: WK2 files are no longer supported by Excel 2007 and later.

Programs that open WK2 files
IBM Collaboration Solutions
Microsoft Excel 2016
IBM Collaboration Solutions
Planamesa NeoOffice
Microsoft Excel 2016
Updated 3/18/2010

FileInfo - The File Extensions Database

This page contains information about the .WK2 extension and its known file associations. Our goal is to help you understand what a WK2 file is and how to open it.

The Lotus 2 Worksheet file type, file format description, and programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and therefore do not publish any information we have not verified.

If you would like to suggest any additions or updates to this page, please let us know!