howto allow xlsb in banned_namepath_re

[Martin Fuxa]

Hi,
howto allow XLSB extension in banned_namepath_re?

I'm trying
   [ qr'(?# SPECIAL ALLOW NEW MS-OFFICE) ^ (.*\t)? T=(xlsb) (\t.*)? 
$'xmi =>
0 ],  # allow

at beginning (first place) of the banned_namepath_re declaration, but 
doesn't works, I got
BANNED contents from you (BLOCK THESE TYPES:.exe,.exe-unix,xl/workbook.bin)

Or better idea how allow this new MS Excel binary spreadsheet?

Thanks

-- 
Regards Martin