Download the latest version of FileZilla Client for your OS (Windows 10, Linux or macOS) from https://filezilla-project.org.
To install FileZilla Client, execute the downloaded .exe file (Windows 10) or extract the downloaded .tar.bz2 file (Linux/macOS).
Open FileZilla Client and select Settings… in the Edit menu:
In the Settings dialog window, select Connection > SFTP and click on Add key file…:
Locate and open the private key file from the SSH key pair which should be used for public key authentication.
If prompted, click Yes in the Convert key file dialog box and execute the conversion of the selected private key file into a format supported by FileZilla Client.
In the conversion procedure, you have to use the password associated with the SSH key pair, i.e., the password/passphrase you originally defined when creating the SSH key pair.
The added private key file should now be displayed in the Private keys list. Klick OK for the changes to take effect:
In FileZilla Client, select Site Manager… in the File menu:
In the Site Manager dialog window, click on New site. In the tab General on the right, set the input fields as follows:
Click on Browse… and locate/choose the private key file which you previously added in the Settings dialog window (step 2). Click on OK to save the connection:
In FileZilla Client, select Site Manager… in the File menu. In the Site Manager dialog window, select the site which you previously added (step 3) and click on Connect.
In the Remember passwords? dialog window, click OK.
In the Enter password dialog window, enter the password associated with the SSH key pair, i.e., the password/passphrase you originally defined when creating the SSH key pair.
After the connection is successfully estabished, FileZilla Client shows the LiRI SFTP storage's root directory on the right side: