Hi Christian, I am still trying to figure out some stuff for openpyxl and column widths, but yes; if you check OpenXML documentation (
https://docs.microsoft.com/en-us/dotnet/api/documentformat.openxml.spreadsheet.column?view=openxml-2.8.1) - search for width; almost all stuff in OpenXML are available in openpyxl thought not always document, so you need dive into the library code; checkout worksheet column_dimensions ; if your column does not have a custom width set, u need to find the default width which is available at worksheet sheet_format defaultColWidth
Like I said though, the col width is a weird one, i am not sure if it is given in pixel, points or other unit... colors and fonts, debug and see what the Cell object has; again whatever u find in OpenXML documentation most of it is somewhere in the code of openpyxl; good luck!