I am currently using the OFFSET command to jump from one column to the
next if I increase the number in Cell A2:-


=OFFSET('[Time 05.xls]Act 05'!$D$57,0,$A$2-1)


What this does is returns the value in D57, if number 1 is in cell A2.
If I change the number in cell A2 to 2, it returns the value in E57,
etc.


The problem I have is that it is linked to another spreadsheet and if I
don't have the other spreadsheet open it returns a #VALUE. Thought I
could get round this by using INDEX, but can't quite work out how this
works. Can anyone help?