- Extension
- .wk1
- .pm
- Format
- Binary
- Text
- Category
- Spreadsheet
- Document
- Developer
- IBM
- Description
- Lotus Worksheet (wk1) is a file type used by the Lotus 1-2-3 spreadsheet application. It is a binary file format used to store worksheets, which can contain numerical and textual data, as well as formulas, charts, and images. It is now considered an obsolete file type and is replaced by the newer xlsx format.
- A TXT file is a standard text document that contains unformatted text. It is recognized by any text editing or word processing program and can also be processed by most other software programs.
- MIME Type
- application/vnd.lotus-1-2-3
- text/plain
