The SUMIF function can be used to change the contents of the total according to conditions, and the SUMIFS function can be used to specify multiple conditions. The reason why and how to use the SUMIF...

In the last issue, we introduced how to use the TIME function to display the time in 15-minute increments, 30-minute increments, etc. (TIME function) Excel pointed out that it would be easier to use the CEILING and FLOOR functions...