The SpreadsheetFormats type exposes the following members.
Returns an internal class, that provides enumerable possibilities over all existing Spreadsheet formats
Data Interchange Format (DIF)
Flat OpenDocument Spreadsheet (FODS) — stored as a single uncompressed XML document
OpenDocument Spreadsheet (ODS) stand for OpenDocument Spreadsheet Document format that are editable by user. Data is stored inside ODF file into rows and columns. Learn more about this file format here.
SpreadsheetML — Microsoft Office Excel 2002 and Excel 2003 XML Format
StarOffice or OpenOffice.org Calc XML Spreadsheet (SXC)
Excel Add-in (XLAM)
Excel 97-2003 Binary File Format (XLS) represents files that can be created by Microsoft Excel as well as other similar spreadsheet programs such as OpenOffice Calc or Apple Numbers. Learn more about this file format here.
Excel Binary Workbook (XLSB)specifies the Excel Binary File Format, which is a collection of records and structures that specify Excel workbook content. Learn more about this file format here.
Office Open XML Workbook Macro-Enabled (XLSM) is a type of Spreasheet files that support macros. Learn more about this file format here.
Office Open XML Workbook Macro-Free (XLSX) represents documents that was introduced by Microsoft with the release of Microsoft Office 2007. Learn more about this file format here.
Excel 97-2003 Template (XLT) represents template files created with Microsoft Excel which is a spreadsheet application which comes as part of Microsoft Office suite. Microsoft Office 97-2003 supported creating new XLT files as well as opening these. Learn more about this file format here.
Office Open XML Template Macro-Enabled (XLTM) represents files that are generated by Microsoft Excel as Macro-enabled template files. XLTM files are similar to XLTX in structure other than that the later doesn't support creating template files with macros. Learn more about this file format here.
Office Open XML Template Macro-Free (XLTX) file represents Microsoft Excel Template that are based on the Office OpenXML file format specifications. It is used to create a standard template file that can be utilized to generate XLSX files that exhibit the same settings as specified in the XLTX file. Learn more about this file format here.