Oh, Excel rants.
Because I've had to design a series of dashboards in Excel, I've been especially sweary of late.
They'd still not fixed the issue with broken fonts in PDFs generated from Excel (and possibly other components). This means you have to open the PDF in a suitable editing application and reset the tracking and occasionally manually respace. Apparently, it's a known issue. Fonts contain all the information needed to maintain spacing, there's no need or benefit to poorly re-engineer this in a way that is effectively broken.
Charts that randomly change size a bit. I have regular components of a defined size. I've put this size into the format fields. Please don't convert 9cm to 8.68cm when I'm not looking.
And the one that got me the other day. I'd set up a complicated formula, but the cell was wrong. I scratched my head. Pressed the calculate button etc. Still wrong. Then I nudged the mouse and cause the screen to scroll. Well, Excel had calculated the field correctly, it just evidently hadn't told the screen. Sigh.
It'll all get ported to Tableau Server and Angular shortly. I'm sure that'll give me something new to rant about.