.wk1Typical support level 3

Open Lotus WK1 Worksheets Online

Read supported Lotus WK1 spreadsheets and related older Lotus worksheets. Free, with no uploads, signup or software installation.

Choose a .wk1 file

Your file stays on this device

Choose a file to view it in your browser. No signup or software installation needed. Your file stays on your device and is never uploaded.

What Anyfile can show

Legacy worksheet labels, numbers and dates
Supported cells from several WK generations

Limits and conditions

Macros, graphs and format-generation-specific features are incomplete
Old date systems and character encodings require cautious interpretation

IMPLEMENTATION

Viewers responsible for this format

WK1 and its related WK2, WK3, WK4 and WKS extensions record worksheets from different Lotus 1-2-3 and compatible-product generations. Anyfile uses SheetJS to recover supported cells into a read-only grid.

Excel viewer

Excel viewer: explore supported file formats, viewing limits and open-source credits. Your files are never uploaded.

See implementation and open-source credits

Common question

Why do several WK extensions redirect here?

They represent closely related generations with the same inspection task, so one maintained page explains their shared limits without duplicating content.