If your arrow keys are not working in Excel, there are a few simple ways to troubleshoot and solve this problem. The most common solution is to turn off Scroll Lock. If you don't have a Scroll Lock ...
Here are the best uses of the Arrow keys in Excel with Scroll Lock mode turned on. Pressing Ctrl+Shift+Up, Down, Left, or Right Arrows selects the current cell and all cells above, below, to the left, ...