Maybe I misunderstood your post, but is you don't have Excel, you won't be able to use any Excel macros....
If it's the reference to excel you require, pop an ActiveX "automation refnum" on the front panel and right-click it. Choose the class as "Excel object library" (version 10 is currect AFAIK) and then in the box below choose "Excel.Application" and voila, you have a reference.
You'll still need to use the ActiveX "Open" function to make it useable though. And don't forget to close it again when you're finished.
Hope this helps
Shane.
Using LV 6.1 and 8.2.1 on W2k (SP4) and WXP (SP2)