i currently have an at&t samsung galaxy s2 and just ordered an upgrade to a galaxy s4. i have a micro sd card in my current phone and want to know how to save some pics to my sd card so i can have them on my new phone. when i go to the DCIM file under external_sd, theres a whole bunch of pictures and then near the bottom of the list is hundreds of number files that end with ".tec". at first i was going to delete them all to make room on the sd card but i dont want to destroy all my pictures because these .tec files might be important. what are they and can i delete them? im getting my phone possibly tomorrow so PLEASE i need help ASAP. thank you in advance.