How To Apply Css On Html To Excel Export

I am trying to export HTML to Excel format using php headers, but CSS styling is not applying on elements (while export to excel file), I also try to implement Bootstrap Classes, b

Solution 1:

Short answer is no, you can't apply css to excel.

You can, however, apply some formatting to the text of excel files, but the amount of formatting is limited by the library you use to generate the excel file and to what formatting the excel itself permits.