Hello, and thanks for reading. I am relatively new to Excel in the workplace
and need to find the answer for this as quickly as possible for a project I
am working on (due tomorrow!!!).

Basically, I have a worksheet with eight columns and about 2500 numbers
(rows) in each column. I need to have another column that is made of of the
average of the 8 columns for each row. I know there must be an easier way to
do this than to go down row by row and find the average of the 8 columns for
that particular row. Essentially, I need to find a way to turn the normal
average function =average(D3:K3) into a formula I can fill down a column
where the number (3 in this case) changes depending on the row it is inserted
to.

Is there any way to do this? I have well over two thousand rows and simply
dont have the time to insert the average function and change the row number
each time. I would be eternally grateful if anyone can help me with this.
Thanks sooo much!