Variable in OLE DB Connection

[Shades799]

Hi All,

I have the below connection specified in the Data->Import External Data->Edit Query but I wish to replace the static SHADES799 with a variable Username that will pick up the Windows username of the person running the sheet. How and where can I make this change to achieve desired results?

Provider=Microsoft.Jet.OLEDB.4.0;User ID=Admin;Data Source=d:\Documents and Settings\SHADES799\My Documents\Employee_RankingGrid.xls;Mode=ReadWrite;Extended Properties="HDR=YES;";Jet OLEDB:System database="";Jet OLEDB:Registry Path="";Jet OLEDB:Engine Type=35;Jet OLEDB:Database Locking Mode=0;Jet OLEDB:Global Partial Bulk Ops=2;Jet OLEDB:Global Bulk Transactions=1;Jet OLEDB:New Database Password="";Jet OLEDB:Create System Database=False;Jet OLEDB:Encrypt Database=False;Jet OLEDB:Don't Copy Locale on Compact=False;Jet OLEDB:Compact Without Replica Repair=False;Jet OLEDB:SFP=False

Many Thanks for any help,
Colm