To change Gridline color in Excel, use Excel Options, apply a custom-colored border to the cells, or apply a custom line color. Full details here.

Excel macros are like mini-programs that perform repetitive tasks, saving you a lot of time and typing. Here's everything you need to know to start programming macros yourself.

Generally, every cell in a row or column has the same size, so you can't adjust the size of a cell individually without affecting the others in its same row or column.

Adding a Header Go to the "Insert" tab on the Excel toolbar, and then click the "Header & Footer" button in the Text group to start the process of adding a header.