KeyError: _BUILTIN_FORMATS[43]
Created originally on Bitbucket by codeape (Bernt R. Brenna)
When loading a specific workbook, it failed with a KeyError. Turns out the _BUILTIN_FORMATS dictionary does not contain formats 41-43. I had a look at presetCellStyles.xml in part 4 of the Open XML spec, and found the defs of the formats there (if I understood the file correctly).
The attached patch is my attempt to add formats 41-43.
Attachments: style.py.patch