Android - Create a Class That Stores Ints and Strings into one New Fyle Type.

Hi. I am looking for someone who knows how to create a Class, for Android, in Java, that, at first instance, creates a New Specific Type of File (.prl or other name), and then that stores certain Int's and String's into it, in an organized scheme that would allow to later recover the data. The fyle encoding can be any one which would allow to write Strings and Numbers into it, in an organized manner. . Just that. I need just the Raw-Brute-Generic Class, which I will adapt later to my final purpose. If you have any question about the Project, ask it. . I'll await for your proposals. . Thank you for your time. Have a good day.