highlighting in Excel

I have a very insignificant but annoying problem.

In an Excel file, I have a block of cells that have been highlighted in blue. Now, however, whenever I enter data into a new, empty cell it automatically fills it in with blue. Then I have to manually go and unhighlight it. Is there some way to stop this auto-highlighting? Or can someone tell my why it is doing this in the first place?

 

Howdy Stone Dog, You might have a cell formatting problem. If something has been done in excel, sometimes it attempts to think ahead for you and sort of "autofill" in cells the same way as a previous entries. You could check under "Format" cells and see if any of the shading boxes etc have been ticked? Hope this helps.