not sure i 100% understand your question.
But if im reading this right you want to select row 7333:16000, and then fill in with a color?

if so you can either scroll to roww 7333 click on the row and then scroll to 16000 and shift click on that row to select that range.
You can also select the find and select button on the home ribbon hit go to and then type in 7333:16000.
once the range is selected you can hit the fill color button on the home ribbon