dataproxy error on handling xlsx as xls?

[teodorescuserban]

http://dev-data.hdx.rwlabs.org/dataset/consolidated-stocktake-9-06-2015-xlsx/resource/9c6dc735-dd63-4596-a09b-fec327f2a463# error is: Could not load view: DataProxy returned an error (Data transformation failed. ReadError: Can't read Excel file: XLRDError("Unsupported format, or corrupt file: Expected BOF record; found 'PK\x03\x04\x14\x00\x06\x00'",))

the "PK" sugests that xlsx is actually some kind of xml, zipped file (which it is). why dataproxy doesn't know that and it is surprised by the content?

assigning @danmihaila to asses, prioritize and assign.

[danmihaila]

@alexandru-m-g related to preview