I use P3DO Explorer (free from www.senosoft.com) - this has the advantage that you can see the thumbnails in the Explorer window, which is handy when items are named cryptically. I also use Hogsoft's Correct Reference Pro. It's pricey but an absolute lifesaver in sorting out incorrect texture calls, missing geometry files, etc.

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"you are terrifying
and strange and beautiful
something not everyone knows how to love." - Warsan Shire