I am working on a report that has been made by other people in my department.
On almost every sheet I see white lines which I can't seem to delete.
The only way I know is to delete the entire rows.
No one knows how those lines are made.

I put an example of the line in a file at http://www.tazlure.nl/whiteline.xls

Can anyone tell me how this line can be deleted?
Thanks.