I have removed the quotes for ease of reading. Next time don't use them when the message you're replying to, is directly above yours in the thread.
For those who haven't noticed, OP appears to be in China, where 3rd-party file-hosting services are banned.
I have looked into it briefly, and found that people recommend
https://www.nihaocloud.com. I haven't used it personally, but the process should look the same as for other services.
Simply make an account, upload your file, copy the link to that file, and send it to you recipients, or add it to a post.