I created a multi-sheet workbook in Excel 365 (Windows 10), specifying the "theme font" (typeface) to be Arial/Arial. I then save the workbook on SharePoint. When I subsequently open the workbook from SharePoint in a browser window (Edge), the typefaces are mixed...some still appear to be Arial but others are a serif face, sometimes they are all a completely different typeface. Regardless of what they look like on the screen, the font listed on the ribbon still says "Arial" when you click on a cell with text that clearly is not Arial.
This is all happening on one computer. Is Arial no longer a standard typeface? I would like Excel to appear consistently and predictably across browsers. How can this be achieved?
Below are screenshots:
Open on desktop in Excel
Open in browser
