Inserting one .xls into another

I want to add an existing .xls file to the end of another file and retain all the formatting, etc. Working with Office 2003, Windows XP Pro.

Suppose two existing spreadsheets: A.XLS and B.XLS, each with 3 worksheets.

I want to "add" the 3 worksheets in B.XLS to the end of A.XLS -- to become worksheets 4-5-6.

In Microsoft Word, the commands are INSERT > FILE... > [ select .DOC ].

I cannot file a comparable command set in Excel....

Thanks for your help. John

Thanks - that works perfectly. I knew about moving or copying sheets within a single .xls, but didn't know about the move-or-copy opportunity between two loaded .xls files...! Way cool...!

John