We're still less in what you want to do, and more how you want to accomplish it, but I'll answer as best I can. The audio will be tricky. A player cannot upload audio into a game. You'll need the cooperation of your GM to either upload sounds for you, or to temporarily promote you to GM so you can upload your own. After that, they can be played most easily with the Simple Sound Mod script. A GM will need to install that. As for uploading tables, same thing. That's normally GM territory. The simplest thing would be to put the table in your bio or a handout. Then just roll dice and consult them, and the GM can use the table to verify if need be. There is a script, TableExport which will allow you to import and export tables, but it's a bit tricky to learn. I'm not sure if players can use it, but I'll check.