Home : File Types : WK1 File

.WK1 File Extension

File TypeLotus Worksheet

DeveloperIBM
Popularity
2.0 (9 Votes)
CategoryData Files
FormatBinary

Binary

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

What is a WK1 file?

Spreadsheet created by Lotus 1-2-3, a popular spreadsheet program in the 1990s; contains cells, which are organized by rows and columns; used to store and analyze structured data, as well as quickly compute formulas.

More Information

Lotus 1-2-3 is included with Lotus SmartSuite, which was acquired by IBM in 1995.

NOTE: WK1 files can be opened in some versions of Microsoft Excel. However, some formatting information may be lost during conversion. WK1 files are no longer supported by Excel 2007 and later.

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Programs that open WK1 files
Updated 4/8/2014

About WK1 Files

Our goal is to help you understand what a file with a *.wk1 suffix is and how to open it.

The Lotus Worksheet file type, file format description, and Mac, Windows, and Linux programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and only publish information about file formats that we have tested and validated.

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