hi for every one

the following statements open txt file and read it :

Code:
Dim f As Integer
f = FreeFile
Open App.Path & "\xx.txt" For Input As #f
but if (xx.txt) is deleted the compiler give me :

run time error'53'
file not find
i want if the program not find file,i want to execute next statement without show error .
what is the code use to ignore that error.