COPY FILES FROM DROPBOX TO TENCENT QQ

First of all,
You need a jailbreak iPhone/iPad

Before you try to locate your file, you should favorite your file, so that IOS can save your files in local cache.

Open iFile:

Dropbox location:
/var/mobile/Applications/Dropbox/Library/Caches/Users/3225***(random  number I guess)/FileCache/Loaded/P45**(same random number) (Scroll down all the way to the end)/File

Find it, cut it.

QQ Rec File location:
/var/mobile/Applications/QQ/Documents/5205****(this is your QQ number)/FileRecv

Find the path, then paste it.

You are done, now you can sent out your dropbox files from your QQ to your friends!

Congrats!