Extra simple workflow to color header row backgrounds in Excel file

Hello All,

I would like to just input (e.g., read) an xls file, set the background of headers to a given color (e.g., yellow) and output the colored file. I had a look at “Continental Nodes for KNIME — XLS Formatter Nodes” which feels like killing a fly with a sledge-hammer (plus, I confess to beeing too lazy to learn all that for such a simple result). Is there a real simple way to achieve that?

Thanks!