- Extension
- .xhtml
- .xlk
- Format
- Text
- Category
- Developer
- Spreadsheet
- Developer
- The World Wide Web Consortium (W3C)
- Microsoft
- Description
- 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.
- XLK files are Microsoft Excel Backup Files, which are created as backup copies of Excel files (.XLS or .XLSX). They contain a copy of the excel file in its original state, and can help to restore a file if the original is lost, damaged or corrupted.
- MIME Type
- application/xhtml+xml
- application/vnd.ms-excel
