- Extension
- .xlk
- .xlsx
- Format
- Binary
- Category
- Spreadsheet
- Spreadsheet
- Developer
- Microsoft
- Microsoft
- Description
- 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.
- An XLSX file is an Excel spreadsheet created by Microsoft Excel or another spreadsheet program, such as OpenOffice Calc or Apple Numbers. It stores data in worksheets, which contain cells arranged in a grid of rows and columns, and may also contain charts, mathematical functions, styles, and formatting. XLSX files are commonly used to store financial data and to create simple or complex mathematical models.
- MIME Type
- application/vnd.ms-excel
- application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
