"safe" reserved ranges are not read from workbooks
Created originally on Bitbucket by rick_pelletier (Rick Pelletier)
When reading a workbook, if there are any reserved ranges defined here, the read will discard them.
This breaks the ability to read autofilters properly, as the _xlmn.filterDatabase named range is used to hold the data for the filters.
From reading the Google Groups threads, it sounds like the discarding of reserved ranges was added as a protection from some kind of issue with the reserved ranges used for the printing-related functionality. I think there should be a finer-grained approach to discarding the ranges.