Blepo

I have seen peoples tips and the forums usually get locked because they are resolved but the information they say don't help me, I've tried uploading from both the website and from in game, I have been trying all day, I've changed my strategy probably 30 times now and none of it has worked, I Just want to upload my world to play on. I don't know if I'm compressing it wrong or something maybe? my world is 143MB's. every time I try on the website it says error file undefined and in game it says "Upload Failed! invalid Files." EDIT: It worked, i just had to use file.io