Okay....
When you create a hyperlink, there are two parts to the address
Hyperlink Address
Hyperlink Subaddress
So say you create a link to \\Netshare\subdirectory\SomeFile.XLS
Then you want to set focus to a specific cell, say Z15
Hyperlink Address would be \\Netshare\subdirectory\SomeFile.XLS
then subaddress would be the specific cell you wanted to go to: Z15