@HellFireKoder That is exactly the answer I wanted. Thanks!

Since you've gotten the answer you wanted, I'll tell you what it really means (in general, not specific to SimplePlanes), XML stands for "eXtensible Markup Language", which is just a pretty looking text file that can be used several ways to allow for a very flexible format to read and store data in.

@Skua cool. Thanks! And sorry about the nightmare, I had to.

Specifically, it's the file type that SimplePlanes uses to store your saved planes (and a bunch of other stuff).

@Flightsonic hmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm

It's a file type, similar to HTML and such