The formula to add multiple rows in Google Sheets is the same as the formula used in Excel. Type =SUM (cell range of first row, cell range of second row, cell range of third row, …) and hit Enter.

The SUM function in Excel can replicate and surpass COUNTIFS, SUMIFS, and AVERAGEIFS by combining logical tests, mathematical operations, and auxiliary functions like SIGN and ISNUMBER.

The Autosum function can be used to add or sum Time in Microsoft Excel. You can add hours and calculate the total time in Excel.