Macro to open external file

hello,

you can run any .exe file using the shell command

Sub ShellOut()
Dim X
X = Shell("NOTEPAD.EXE", vbNormalFocus)
X = Shell("NOTEPAD.EXE " & "C:\Test.txt", vbNormalFocus)
X = Shell("CALC.EXE", vbNormalFocus)
End Sub

There is also great code around the web for SHELL AND WAIT this is great when you want to open a program that will automataclly process some information (resize images for example) and the VBA code will wait on that line for the executing handle to finish its job before continuning.

hope this helps
cheers