Hello, can I upgrade a Paris Visite 1-3 zone ticket to a 1-5 zone? If so where can I do this? Thank you.
If the Paris Visite ticket is unused (never put into a turnstile machine for validation) you could ask a ticket agent at any Metro, RER, Transilien ticket window for an exchange / upgrade to a 1-5 zone Paris Visite, which may or may not be allowed.
After the Paris Visite ticket has already been used and is during its course of validity, I do not believe an upgrade is possible.