how to store array values in local drive using C#?

I have 6 Values in Array List. How can i store these values in the same program folder. while registration form our photo will be saved on same program folder like that i have to save my array values in local drive. because next time am running the same application and enter new array value means that  array value should compare with already saved array values.. so the array should be saved in local storage.. 


please anyone help me..


Thank you in advance.