Copy formula exactly while counting up the reference number

Good Evening and Thank you in advance for any help.

I am trying to copy a formula in 1000 rows, without it changing, yet keeping the reference number the same.

ex.
=COUNTIF(MON!C10:C70,KEY!E3)
* *=C10:C70 NEEDS TO REMAIN THE SAME
while E3 counts up E4, E5, E6 etc, to E1000

=COUNTIF(MON!C10:C70,KEY!E4)
=COUNTIF(MON!C10:C70,KEY!E5)
=COUNTIF(MON!C10:C70,KEY!E6)
=COUNTIF(MON!C10:C70,KEY!E7)

When I copy and paste from he first cell it ends up counting the formula also.

=COUNTIF(MON!C11:C71,KEY!E4)
=COUNTIF(MON!C12:C72,KEY!E5)
=COUNTIF(MON!C13:C73,KEY!E6)
etc etc

HOW do I keep the formula from changing while having the reference number count up??

Thank you for any help!

Hi,
You can use absolute reference to create the formula to help you fix columns or rows you need.
About how to use cell reference in Excel, you can refer to this article:
http://www.excel-easy.com/functions/...eferences.html