The best catch-all method for counting rows in Microsoft Excel is the COUNTA function. This function counts the numbers of cells that contain information in a given range. For example, the formula =COUNTA($A$1:$A100) counts the first 100 cells in column A that contain data, effectively counting the number of rows.
If all the cells in the first column of the spreadsheet contain numerical values, then the COUNT function can be used to accomplish the same goal as well. Additionally, the COUNTIF and COUNTIFS functions can be used to determine specific criteria that must be met in order for the row to be counted.