How to create backup of Viber messages
Viber is an awesome app for free messaging and voice calls. It’s available on Android and IOS.
You can create backup of your conversations.
To do so, go to Settings → Calls and Messages → Email message history.
Then it will create a backup file of your viber messages.
By default, the file name will be vibermessages.zip
Now select any sharing option from next step which will appear automatically.