.WK2 File Extension
File TypeLotus 2 Worksheet
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.
NOTE: WK2 files are no longer supported by Excel 2007 and later.