Excel 2002
Windows XP Pro

I am thinking of creating an Excel AddIn file that will compare two
databases (other Excel files actually). My first question is: can I access
data or information on any of the worksheets in the *.xla file and copy and
paste it to another regular *.xls file? If I'm not mistaken an *.xla file
is not part of the workbooks collection, so I'm wondering if what I'm asking
is impossible. Thanks!

-gk-