I would suggest opening your files using EXCEL.

--
Don Guillett
Microsoft MVP Excel
SalesAid Software

"dveer" wrote in message
...
When I open 2 workbooks in 2 instances of Excel on my computer, I can not
copy a sheet from one book to the other. It is also not possible to tile
the
2 files.
When I open both files in the same instance, it it possible to select the
other file in the dropdown list.
Since I usually open the files from Explorer, I would like to be able to
tile & copy when multiple files are opened.
What setting should I change?