Select the cell where you want the result
Type `=COUNTIF(range, criteria)`
Replace `range` with the cells you want to evaluate
Replace `criteria` with the condition you want to count
Press Enter
Example: `=COUNTIF(A1:A10,”Apple”)`
Example: `=COUNTIF(B1:B20,”>50″)`
Example: `=COUNTIF(C1:C100,”<>0″)`
Use double quotes around text criteria
Use comparison operators like `>`, `<`, `=`, `>=`, `<=`, `<>`
Use cell references for criteria if needed, such as `=COUNTIF(A1:A10,D1)`