How vuforia read the xml files?

Dear All;

In IOS

I added 2 files for my target called "MyTarget.xml" and "MyTarget.dat" in assets folder, and then added it's name in ImageTargetAppDelegate.mm

[qUtils addTargetName:@"Stones & Chips" atPath:@"MyTarget.xml"];

and it is working very well

my problem is: I Removed this files from the assets folder but i found it still work although it has been deleted

is there any another place to save this files??!!!!!!!!!!!!!!