Double Clciking Excel File

[W. Lock]

When a user double clicks an excel input file, if it finds an open workbook,
it adds it to the workbook with the same settings.

Could this be changed so that when the user double clicks an Excel Input
file, it opens a new instance of Excel rather than using an existing one?

 

[Nick Vivian]

When a user double clicks an excel input file, if it finds an open workbook,
it adds it to the workbook with the same settings.

Could this be changed so that when the user double clicks an Excel Input
file, it opens a new instance of Excel rather than using an existing one?

Check this:
http://excelexperts.com/Excel-Tips-Launch-Excel-In-New-Window