I have a Sony TV which has a Media player for displaying photos and videos. I want to play a slideshow of my pics from the Photos App on my Mac by exporting them on a USB stick which I can plug into my TV. I want the TV to play the files in the order maintained in the Photos app. So I tried exporting the pics from the photos app using the "Sequence" option. This renames the files like 1.jpeg, 2.jpeg, 3.jpeg, and so on. The problem is that my Sony tv sorts files in Alphabetical order, so the file 10.jpeg comes immediately after 1.jpeg, and not 9.jpeg as expected. Hence I want to export the files with names like A.jpeg, B.jpeg, C.jpeg,...AB.jpeg, AC.jpeg and so on. But I am not sure how to do it.
Alternatively, is there any mac app which can convert files named 1, 2, 3 to A, B, C..?