Ok, then it looks like you have three problems. You can't open the right file (in the first script), you can't access a sheet by name, and you're surprised to get "Win32::OLE=Hash(0x1832544)"
(in the second).
In the second script, you can open the right file. So, for now, forget about file access and solve the problem of accessing a sheet by name by working from the second script. Have you tried listing the names of the worksheets based on your second script, using the example I gave you?
Your second script is working normally. print "$Sheet" returns a strange value because $Sheet is an object. To access the sheet's name and print it, use
print $Sheet->Name, "\n";
If you continue to have problems, please post your exact code and the output you get.