I’m moving into a new house that looks to have Ethernet wired through it though it looks like it was being used for telephone?

I’m wondering if it will be usable for Internet and if so what changes I need to make/what exactly I need to do.

Also is there any way to tell if it’s all cat 5 or cat 5e?

I don’t know much about this so step by step on how to make it work for Internet would be greatly appreciated.
So far my guess is that I need to pull all the wiring out of that current punch panel and add RJ45 connectors to each separate wire? At that point I just need a way to connect them to my router?

Thanks a lot!

[![enter image description here](https://i.stack.imgur.com/hQ2h3.jpg)](https://i.stack.imgur.com/hQ2h3.jpg)