The file formats in the Save As dialog box vary depending on the active sheet type - worksheet, chart sheet or other. When saving in another format, some formatting, data and features may not transfer...
The file formats in the Save As dialog box vary depending on the active sheet type – worksheet, chart sheet or other. When saving in another format, some formatting, data and features may not transfer. To open a file created in another format or earlier Excel version, click File > Open. Excel 97-2003 workbooks open in Compatibility Mode automatically.
XLS is Excel’s proprietary binary file format used until 2007. XLS files store data in rows and columns with formatting, images, charts and more. After 2007,XLSX replaced XLS as default format.
XLS files can be opened on Windows, Mac, Linux, Android, iOS. Most common programs are Excel, OpenOffice and Numbers. Some features may not transfer when saving as XLS.
Microsoft Excel
Google Sheets
OpenOffice Calc
LibreOffice Calc