Importing models animations etc

Hello!
I want to make game “remake” of my childhood names “tales of pirates”. I have all files to make it in old style but i want to make remake on ue4. Do you know that i can use models, animation from that old files? I tryed to import files to ue4 but tere is a error. There are weird extensions like .lgo , .lab, and more. Can i somehow change extension or import it to ue4?