I am trying to edit a previously saved spreadsheet. Many of the cells are
colored, and I would like to eliminate the shading. However, whenever I
select a shaded cell and try to remove the shading by choosing "No Fill,"
nothing happens. I cannot change the color either. If the cell is already
white, I can add shading to those. but the already shaded cells seem to be
"locked." Any advice to getting around this besides retyping the file? Thanks!