Spreadsheet.com works with other spreadsheet software. Not only can you import from Excel into a new workbook or from Google Sheets and others, but you can export out from Spreadsheet.com too. Although the feature is called "Export to Excel", most other spreadsheet applications are capable of importing .xls file types, allowing you to export to more than just Excel.
How to export to Excel
You can export workbooks to Excel (an XLSX file) by selecting the “Export to Excel” option in the File menu.
From this selection, you will be prompted to save the Excel file to your local computer.
Cells with data types that have no equivalent in Excel (e.g., Attachments, Related rows, Collaborators, etc.) will be converted to the closest human-readable text equivalent value.
See also our articles on importing from Excel and other common spreadsheet programs.