In this tutorial how you can upload and download files with Filezilla.
You can download files TO your computer or upload files FROM your computer using a File Transfer Protocol (FTP) program. FTP refers both to an Internet protocol as well as to the name used for software applications that perform this function.
There are several free FTP programs available online. In this tutorial I will be using the free program Filezilla. Once you have downloaded this program, you can follow the instructions below.
1. Open Filezilla
2. In the icon bar, click the first button 
to open the Site Manager
3. First time users first need to setup their account details, second time users can skip this step and proceed to step4
In the Site Manager, click the button “New Site”
- in the newly created folder (in left panel), enter the name of your site (ex. mysite)
- in the right panel enter your host (provided by your hosting service)
- choose logintype “normal”
- enter username and password (provided by your hosting service)
- click OK
4. Now you can connect to your host by clicking the down arrow next to the Open Site Manager button
and selecting your site
You are now connected to the host and you will see a window divided in 2 panels:
the left panel shows the files of your computer, the right panel shows the files of the remote site
TO DOWNLOAD
4.1. Find the file(s) that you want to download in the right panel (remote site) by browsing through the folder icons (just like in Explorer)
4.2. Navigate in the left window to the folder where you want to save the downloaded file(s).
4.3 Drag the files form the right to the left like in the video
TO UPLOAD
4.1. Find the file(s) that you want to upload in the left panel (your computer) by browsing through the folder icons (just like in Explorer)
4.2. Navigate in the right window to the folder where you want to upload the file(s).
4.3 Drag the files form the left to the right
I always use Filezilla.