Excel will insert the same number of columns as you've selected. How to add a column in Excel using the "Home" tab. 1. Open Microsoft Excel on your PC or Mac computer. 2.

To add a zero after a number in Excel, you can use the CONCATENATE function. For that, you need to choose a cell and enter this formula: =CONCATENATE(A1, “000”).

How to unhide all hidden columns in Excel. 1. Open Microsoft Excel on your PC or Mac computer. 2. ... How to sum values in Microsoft Excel in 2 different ways, to add multiple numbers or cells ...