Looking for a tip on Microsoft Excel (2003):
If you click on a cell containing a formula, click into the formula, and click away, Excel will enter the cell or range you next select into the formula at the cursor. This is fine and dandy a lot of times, but right now I am working with a spreadsheet that has a lot of really long formulas. If I click into a cell and it goes into the state where it wants to enter a reference to the next cell I click into the formula, I can't always get out of it, and if I click on something, I don't always even know what the change was (these are really long formulas).
So my question is, is there a keystroke I can press or some other action to immediately get out of "input the next thing you click" mode and be sure there are no side effects? Ctrl-Z doesn't do it.