InfoPath Dev

When using InfoPath, the default DATE data type does not have a input recognition when entering only digits such as (41315) to (4/13/15). How to change the user input automatically of number/digits into a date format?

Hi, Is there a way to create excel file from InfoPath xml data? When something like button clicked event happens, I want to write a c# code behind to convert InfoPath xml data to create excel file. Is there a way to do this? How do I code it? Thanks.