This driver can read, write and update spreadsheets in Microsoft Office Open XML (a.k.a. OOXML) spreadsheet format, generated by applications like Microsoft Office 2007 and later versions. LibreOffice/OpenOffice can also export documents in that format since their v3 version.
The driver is only available if GDAL/OGR is compiled against the Expat library.
Each sheet is presented as a OGR layer. No geometry support is available directly (but you may use the OGR VRT capabilities for that).
Note 1 : depending on the application that produced the file, the driver might succeed or not in retrieving the result of formulas. Some applications write the evaluated result of formulas in the document, in which case the driver will be able to retrieve it. Otherwise the raw formula string will be returned.
Note 2 : spreadsheets with passwords are not supported.
Note 3 : when updating an existing document, all existing styles, formatting, formulas and other concepts (charts, drawings, macros, ...) not understood by OGR will be lost : the document is re-written from scratch from the OGR data model.