I am looking for a formula that will check an entire worksheet if any of the formulas in that worksheet contain "SUMIF". If there are any, the formula should return "Yes", otherwise "No".
You will need to do the following:
Use the COUNTIF
formula with the name range.
=COUNTIF(YourRange, "=SUMIF")
Surround that with the IF
formula to transform the 1 or 0 to "Yes" or "No"
=IF(COUNTIF(YourRange, "=SUMIF")=1, "Yes", "No")