Object repository using Properties file

Hi All,
I have a form with 30 input text boxes. I need to create a custom function for filling up the form.
Is there any way to capture the xpath of all these 30 input text boxes and store it in a properties file using unique variable names and using the same variables as parameters while calling the function?
(Similar to properties file concept in selenium)
Thanks a lot in advance

Does Excel data testing fit your needs?