Excel spreadsheet can have 16,384 columns in total. The data goes from up and down. If you want to insert a column in Excel, click the column and click insert in the context menu. A column will ...

Then, in the new column B cell, calculate the total. In our case, we'll type the following formula into cell B12: =SUM(B2:B11) You might prefer to use Excel's built-in Total Row function to force ...