APPENDIX C: Using ExcelC.2Performing CalculationsAll calculations in spreadsheets begin with “=”. First, select the cell that will hold the resultof the calculation, type “=”, and enter the formula to be evaluated. Typing “=5+9” and‘Enter’ will yield “14” in the cell; the cell beneath will then be selected. If you need a cell tocontain ‘=’ instead the results of a calculation, precede it with a single quote ‘ ’. . . anythingyou type after that will be displayed verbatim. Even numeric characters won’t be numbersafter ‘ ’.If this was the extent of their capabilities, spreadsheets would not be very popular. Eachspreadsheet cell is at the intersection of a column having alphabetic label at the top and arow having numeric label at the left. ‘A1’ is the cell at the top left corner of the sheet, ‘C8’is at the eighth row and third column, and ‘Z26’ is at the26throw and the26thcolumn.After column ‘Z’ comes column ‘AA’ to ‘AZ’, ‘BA’ to ‘BZ’,. . . , ‘ZA’ to ‘ZZ’. If even morecolumns are needed, three, four, and five characters can be used. Column ‘numbers’ countup just like decimal digits, but column designations have base 26 instead of base 10.