- It forgets what you've copied to clipboard. Copy something. Insert another row so that there's space for it. Paste. Nothing happens. Huh? It lost my copy. It does this for a large number of operations and it drives me crazy. I've never seen any other program do this.
- You can't open two spreadsheets of the same name. This is because spreadsheet formulas can refer to cells in other tables. But I don't use that feature - can't I just open the second spreadsheet with a warning that this feature won't apply to it?
- (This one applies to too many pieces of Microsoft technology.) You can't use common keyboard shortcuts properly. Ctrl-backspace deletes a word in any useful text box. Not in formula editing in excel. And ctrl+delete deletes the rest of the line instead of just the next word. Why?