How do I sign an appeal to get rid of false bans or mass false reports?

You can't do anything about reports. If you get a suspension, you would check the enforcement site to see about submitting a case review. https://support.xbox.com/en-US/help/family-online-safety/enforcement/how-to-submit-a-case-review

I've already sent an appeal for both false reports i have and they said they would get back to me but my new question is if I appeal will the strike be removed? Because long story short i was false reported and it counted tor 6 strikes 2 more of them and I am permanently banned, if my appeal is accepted are the 6 strikes lifted and also do strikes rest yearly or something? And if I reach maximum strikes do they reset? I hope i don't get to that point but because of the false report it might happen

Hello, sorry to hear that your friend has been falsely banned due to false reporting. The next step would be to appeal againgst the ban and you should do this by contacting Xbox Enforcement team directly as they do not use the forums to communicate. Remember
to provide as much information as possible to support your case, as this will help you achieve the best possible outcome for your appeal. If the banned person wasn't rude, impolite or abusive towards anyone else while playing on xbox then the chances are that
the ban will be lifted. Good luck and I wish you all the best for your appeal, I hope the ban gets lifted if this is the case.

It was a falsely ban, is there a way to appeal?

Whether the ban was false or not false, you will need to appeal any bans (if available to appeal) at the Enforcement website:

https://enforcement.xbox.com/en-GB

That is the only place that bans can be appealed...no-one on here can help nor can customer support