Microsoft Office Tutorials and References
In Depth Information
Chapter 4: Fixing Formula Boo-Boos
Chapter 4
Fixing Formula Boo-Boos
In This Chapter
Preventing errors with Excel
Following the flow of cell and range references to and from formulas
Using Excel tools to uncover and correct formulas
Excel would be nothing if it didn’t allow you to create formulas. Creating
formulas is, after all, the real purpose of a worksheet — to allow you to
build a solution that pertains to your specific needs. Without formulas, Excel
would be no more than a place to store information. Boring!
Excel allows formulas to have up to 8,192 characters in length. This means
you can create some monster formulas! Formulas can reference cells that
have formulas that reference other cells that have formulas that reference . . .
well, you get the idea!
Ah, but this comes with a price — how can you track down errors in long
formulas? How can you avoid them in the first place? In this chapter, I explain
how Excel steers you away from entering problematic formulas, and how to
correct completed formulas that are not working in the way you intended.
Catching Errors as You Enter Them
Excel is keeping an eye on you when you enter formulas. Don’t be worried! This
is a good thing. You aren’t being graded. Excel is helping you, not testing you.
All formulas start with an equal sign. When you complete an entry by
pressing Enter or Tab (or clicking into another cell), Excel scans the entry. If the
entry did indeed start with an equal sign, then Excel immediately looks for
three major problems:
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