To download the sweep attack in Minecraft Pocket Edition, there are some rules and steps which you have to follow. Which are –
First, download the file named - Swordsweepaddonv2 from this link.
Open the file (.mcpack) using Minecraft PE.
You will be asked by chrome for storage allocation. Allow it to be stored.
Then on your computer, you have to install the add-on.
Finally, to activate the sweep attack, click on the add-on file and press on active.