When asking questions it would help if you use the correct terms. The correct terms will reduce the number of questions needed to solve you problem.
In this question "Have to import my file EVERY time..... " my first response on reading was there is a significant problem, how ever what the poster wanted was a very simple solution.
Open means to display the file created by the program in the program with out changing the file structure.This is what happens when you look at an FTM a file to add data in FTM. The same thing when you look at a Microsoft Word (X.DOC) in Mirocsoft word.
Import means to change the structure of the file so the program can display the contents.This must be done if you are trying to open an FTM Version 16 in FTM 2012.It also happens if you look at a Microsoft Word file in Word Perfect.As you can see if a the program goes through the import function every time the file is opened some thing has gone haywire with the import instructions in the program.