ENH: adding autofilter when writing to excel (pandas-dev#61194) #62994
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WillAyd
requested changes
Nov 5, 2025
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Small comment but overall looks like a really nice PR. @rhshadrach any thoughts?
| Convert 0-based column index to Excel column name. | ||
| """ | ||
| column_name = "" | ||
| while index > 0 or not column_name: |
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Can you raise when index < 0? Also, what's the point of this being a while loop?
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Ignore my while loop comment - I supposed its so you can build column references like AA, BA, etc...
So makes sense, but still in need of a cleanup here
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@WillAyd Thanks for the feedback - input validation added.
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doc/source/whatsnew/v3.0.0.rstfile if fixing a bug or adding a new feature.Description of the change:
Added boolean 'autofilter' optional argument to 'DataFrame.to_excel' function to add automatic filters to all columns in the exported excel files. As discussed with @WillAyd starting simple by allowing to add filters only to all or none columns.
New option supported by 'xlsxwriter' and 'openpyxl' engines.