How to collect phone numbers from message history from unknown contacts in viber?

Question

Android

Hello.
At work, unknown viber contacts often write to me at work and now there is a need to collect their phones, for example, in an excel file.
Please tell me how can this be done? Adding manually to the client, and only then expropriating third-party applications is not an option, too much routine, since there is already a decent amount.

Answer 1

Request a report in the account menu, there it is probably in machine-readable form.

Answer 2

Install the Desktop version of the client, synchronize data.
Order an application on the freelance exchange for exporting data from the internal viber sqlite database.
Profit!