To change the background color of an Excel spreadsheet to grey, open your Excel file and select the cell or range of cells you wish to modify. Click on the "Home" tab, find the "Fill Color" icon (paint bucket), and select a grey shade from the palette. Your selected cells will now have a grey background.
![How to change in excel default grey colour in rows [ 1,2,3..] and ...](https://filestore.community.support.microsoft.com/api/images/91901fee-3f56-428d-9534-6172c41954d8?upload=true)
