Files dont save OUTSIDE the Program, What do

The files are saving in the actual program and i can open the .sifz file in the program to keep on working on them, But i cannot get a gif file opened outside the program and it wont open in the program when i try to open it its says something about it not having the right render :question:

And also i would like to render it into video so i can add audio to it and edit it in my Video editing program ! Anyone for help ? i would love someone on skype to chat with and do animations with btw ! if anyone is interested please do say so ^^ Thanks for helping !

Do you mean you can’t open gif files you save from the project in Synfig?
How do you export these? Do you render a frame or animation into a gif?