Sum a column ignoring formula errors

Having formula errors on a spreadsheet can be bad news. They look ugly, they frighten the less Excel experienced among us and they stop our other formulas from working.

If you have formula errors on a spreadsheet it is normally best to stop it at its source. To either correct the error, or to hide it using formulas such as ISERROR and IFERROR.

However, if your spreadsheet is large, having these IFERROR functions in every cell to protect against error values will add more calculation time to your spreadsheet.

There is a function in Excel called AGGREGATE which allows us to perform various functions on a range whilst ignoring the formula errors.