With "Week1" in cell A1, and "G42" in cell B1, use

=INDIRECT("'"&A1&"'!"&B1)


"theadore" wrote:

I am trying to use a formula to look up weekly figures. Unfortunately the
figures that I need to use are across daily workbooks.

I have created the required reference in a cell using CONCATENATE but when i
try to link to this in the LOOKUP formula it treats the contents as text
rather than a reference.

any ideas?