Old slab - would you use?

Grabbed a bunch of wood from Granddad when he passed 10 years ago, and did not think to check it for insects. It was sitting in his minimally heated garage shop for potentially decades. It has been sitting in my basement shop for a decade. This slab is the right size for a project but I am looking for reassurance it's ok to use. I feel like if anything were still active it would be a lot more chewed up.

The slab is small enough I could fit it in my oven on a low temp as a precaution but I'm concerned that would cause it to split.