3 Microsoft Excel Persistence Formats
Microsoft Excel supports primarily five file formats:
Excel Binary File Format, as described in [MS-XLS]
Office Excel 2007 Binary File Format, as described in [MS-XLSB]
Ecma Office Open XML File Format, as described in [ECMA-376]
Office Open XML File Format, as described in [ISO/IEC29500-1:2016]
Open Document Format for Office Applications (OpenDocument), as described in [ODF], or [ODF1.2], [ODF1.3], or [ODF1.4]