During a project were I was sorting out the Weight Map on a mesh I made with the skeleton I made from the Unreal Engine Animation Rigging Tool (ART), my project crashed and I now have a copy file of that project with an file format I do not recognise nor find out about on any internet search. This file format is .mba04392 . What is this file format about. If it contains the progress I made so far, how can I access it. I also cannot access the original project file. I do have another version of this project but I was wondering why this problem is happening.