Online Decryptor is available in Netsso after login. You can find it in the Online Files dropdown menu. When you click, a new window with Online Decryptor will open:
Click the button “Browse” to bring up the file and then click “Decrypt”. When decryption is completed you will be offered to specify a location folder and name for the decrypted file in the usual way for downloaded files. PRK and RK needed for decryption will be searched in the Netsso database among those associated with you, the Netsso user. If neither PRK nor RK are found then you should login/check your second Netsso account (if you have more than one).