I have a spreadsheet with a start date in column F starting at row 3. Column
M needs to be highlighted a different colour if the value in F3 goes over 7
days. If there is already a date in column M, then this should be ignored.
However, if the date in column M goes 7 days or more itself, then this also
needs to be highlighted. Is there a way of using conditional formatting to
achieve the above?

Regards,

JDB