[Info] Help a Newb XD

Hi guys, prob this question has been already made 2000 times but going through all the post here it's almost impossible.

So .... long story short:

I'm the owner of a Old 3ds-XL with FW 9.2.0-20E

What i would like to know:

Is there is a way to play *.cia or backup file without Cubic Ninja or a 3ds Flash card ?

My 3DS atm it's clean nothing installed, apart from some Eshop game, Youtube, Pokemon update and some some old Eshop Game