Seems simple enough, but I have no idea how to do this.

Here's an example:

=IF(ROW(A3)AO$1,'Page2'!$A?,""), where the question marks denotes the
row number, the value of which, I want to get from another cell
altogether. For example,say cell B1 had the value of 1000 and I wanted
to use that value as my row number in the above formula so something
like =IF(ROW(A3)AO$1,'Page2'!$A(value from B1),"") = =IF(ROW(A3)AO
$1,'Page2'!$A1000,"")

Thanks,
K