I have a workbook with two different worksheets. In order to get the column widths to look physically alike I have to set them 8.75 (75 pixels) on one and 10 (75 pixels) on the other. I assume this is something to do with the overall font for each individual worksheet because the column header bar has a different appearance.

However, I don't know how to change this font (if indeed that is the problem). The fonts from the Themes menu for both worksheets show Heading: Calibri Light and Body:Calibri. The only other settings that I can think of (in options) would appear to apply to all woksheets, which won't help. Has anyone a suggestion?

I have Professional Plus 2019.