When creating a spreadsheet, the layout I start with is usually not the layout I finish with. Having planned my spreadsheet, I always think I have a pretty good idea of where things will go.
So I often end up adjusting the layout by adding extra cells to the worksheet.
Fortunately, this isn't difficult to do since cells can be added in Excel with a couple clicks of the mouse.
To find out just how easy it is, read this short tutorial on how to Add Cells to an Excel Worksheet.