back ground color doesn't work in cell.

[Guest]

In excel....
When I try to use the "spilled paint bucket" icon
to color the cell backgroud nothing happens. It stays white.

 

[Max]

One guess is the cell could have underlying conditional formatting CF) set
to say, fill-color white if the cell contains nothing ("").

You could check / delete the CF by selecting the cell
and clicking Format > Conditional Formatting
Click Delete, select as appropriate > OK out

To quickly select all cells on the sheet with CF
with any cell selected on the sheet,
just press F5 > Special > Conditional formats > OK