Save Panel

NSSavePanel.m

NSSavePanel *savePanel = [[[NSSavePanel alloc] init] autorelease];
    [savePanel setAllowedFileTypes:[NSArray arrayWithObjects:@"fileType", nil]];
    [savePanel setCanCreateDirectories:YES];
    [savePanel setCanSelectHiddenExtension:TRUE];
    [savePanel setExtensionHidden:TRUE];
    [savePanel setMessage:@"Message to display"];
    [savePanel setNameFieldStringValue:@"Default file name"];
    [savePanel setDirectoryURL:[NSURL URLWithString:NSHomeDirectory()]]; //Change us you prefer
    //display the NSSavePanel
    NSInteger runResult = [savePanel runModal];    
    if (runResult == NSFileHandlingPanelOKButton) {
     	//Do something   
    }
    else {
    	//Manage error
    }