@andres.santos
have a look here
andres.santos.xaml (7.8 KB)
when flag off add Headers the excel is readin with autogenerated columnames and is not failing on duplicated col names
Demo is logging the 0-based row and col index for blank column values:
just take it as starter help
for getting the Excel Cell range:
row Index + 1
for the column letter (simple solution done by workarounds or)