/diy/ - Do It Yourself

So, I just chopped down a few trees that were leaning on a wire in my home and I'm wondering, can I use it's wood for anything? I've never done any woordworking before so idk if this is a thing, to just grab a fallen tree and use it's wood, or if I'd need it to be processed before I can do anything.
The tree was some kind of palm tree I believe, and pic related is the chopped down remains of like three of them (and I might chop down a fourth one tomorrow to prevent it from falling on the wire)
also for reference, this wall is about 2m tall. the wood is quite "thin" and idk anything about woodworking to understand if I can build bigger things