Maxim Bulygin 83c759e951 Support to read and write unsupported data for XLSX ...

This will let users read a file that contains data that are not properly
supported and write them back to a new file untouched.

- load workbookProtection attributes
- save loaded pageSetup[r:id]
- save loaded sheet's AlternateContent
- save loaded unparsed VmlDrawings
- save loaded drawing files `rId`
- save loaded draw's AlternateContent
- save loaded control properties
- save loaded printer settings
- save loaded unparsed override content types (for ctrlProp, ...)

Closes #435

2018-05-12 11:47:46 +09:00

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Ods

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XLSX

Support to read and write unsupported data for XLSX

2018-05-12 11:47:46 +09:00