Question [Q] boot anim ??

i have the boot animation i wish to use as im already using it on my desktop computer (i did not create the anim it came in pack) its a bs7 file and from what ive read to create a i need to have the individual images and the amount of frames per second to play it at i really like this current anim how can i convert the bs7 file into a gif which i can then separate the images out of with some online converter (recomendations on that are welcome too) or better yet into the individual images im posting a new thread rather than necroing (this one an old one i did find this but it was too confusing to fully understand (