It's probably a copy of an extensive custom made program from another very similar spec engine.
I would say leave it alone, sure, but at some point in the future you are going to need a copy of the original in there now.
If it was me, I'd want a copy of it.
Even if you are looking at it and have some experience with these programs it will take a while to understand what you are looking at.
Having it as it is now is similar to having a restore point in your pc.
You have something to fall back on.
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