How to make Mac OS Dia open a file on desktop following double click

[Vipin Asopa <vipin asopa net>]

Hi,

When I double click a file on the desktop on Mac OS, Dia program
opens, but does not load the file.

It would be useful to know how Dia can be made to open a file please.

Also - if I try and open a .dia file by another program, same thing happens.

Thanks,

VIpin.