pydata/pandas — pull request #9171 by jmcnamara (2014-12-30 04:40:18+00:00)
Title: BUG: Fix for extraneous default cell format in xlsxwriter files.

Fix for issue in the xlsxwriter engine where is adds a default
'General' format to cells if no other format is applied. This
isn't a bug, per se, but it prevents other row or column formatting.

Issue #9167