- Extension
- .wk1
- .xhtml
- Format
- Binary
- Text
- Category
- Spreadsheet
- Developer
- Developer
- IBM
- The World Wide Web Consortium (W3C)
- 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.
- XHTML files are a type of markup language document used to create webpages. It is an XML-based version of HTML and is designed to meet the needs of Web developers. XHTML files have a .xhtml extension and can be viewed in any web browser.
- MIME Type
- application/vnd.lotus-1-2-3
- application/xhtml+xml
