Print report to excel both append and overwrite doesn't work

When I use the Print Report command twice, I can save the PDF both as append and overwrite of the measurements. But when I want to use one print command to append to Excel and one print command to overwrite to excel, then the last button I selected also becomes selected in the other print command (so that I get 2 appends to excel or 2 overwrites to excel). Seems like a bug.