How do i get all the colums to add up

Hi Ben, Welcome to the forum, thank you for your post, in answer to your question; adding all your columns in Excel is swiftly accomplished by using the AutoSum button, the strange E (Greek Sigma) on the Standard Toolbar, this method is only available if all your columns are the same length, if not you will have to add the values one column at a time, but you can follow this same operation for each column, lets say they are all the same length;
1. If our values are in the range of cells; lets say A3 to D3 and down ten rows in each column. Select the range of cells A3 down to A14 (including an extra row of cells for our totals);
2. Click the AutoSum button once and your totals will be displayed in the cells A14 - D14.
I hope that helped, if so please click the Resolved link, best regards Pete.