I am opening the same spreadsheet on two PCs, and the text looks crisp and beautiful even at lower zoom levels (55-100%) on one of them, but blurry at any zoom level ≤88% on the other.
Why would this be the case?
Here is a screenshot of side-by-side comparison
with zoom level currently set to 55% in Excel.
(Right window is from a remote desktop session, but when viewed locally it's looking just as good.)
Notes / things I've tried
- This has stayed pretty much the same over time, after a number of Office and Windows updates on both sides.
- (from comment) This does not seem to be related to any specific font I'm using, because apparently Excel is falling back to using some pre-defined font at zoom level ≤88% — note how crisp row/column names are on the "right" PC. This zoom→font change has also been noticed by other people: one, two.
- In any case, getting it out of the way: the font I'm using on the spreadsheet is Terminus TTF for Windows and it's installed on both PCs. It is not defined in any specific style.
The font in row/column headers is the default Calibri 11 (defined via Normal style, which I haven't changed).
- Both PCs have a normal-DPI (96?) FullHD display connected, running at native resolution with no scaling (i.e., 100%).
- Excel settings are exactly the same for both installations, and turning hardware acceleration ("Advanced" tab) on or off doesn't seem to make any difference. On the "right" PC, it is turned on.
- I have unsuccessfully tried tweaking the systemwide font smoothing settings using the "Adjust ClearType text" utility, but I'm still experimenting with this.
- "Smooth edges of screen fonts" setting is the same — on
(System → Advanced system settings → Performance Settings → Visual Effects)