You can't explicitly say "don't show these files" or even "don't show these file types" with a standard common dialog, although you
might be able to by hooking the dialog:
http://www.vbaccelerator.com/home/VB/Code/Libraries/Common_Dialogs/Hooked_Common_Dialogs/article.asp.[
^] - but don't ask me for help if it gets confusing, I've not played with that! :laugh:
Better solutions would be to either move your "unwanted" files to a different folder so they aren't easily found:
Where should I store my data?[
^] should give you some ideas on good locations.
The other solution is to restrict the list of file names so that it doesn't include XML files by specifying exactly which types you will accept via the Filter property.
That or write your own dialogs! :laugh: