How many document types can be converted by Symantec Enterprise Vault 11.x indexing?

Symantec Enterprise Vault 11.x for Exchange converts mail message attachments in order to ensure future proofing.
Which file format is used?

Which two key benefits are provided by Symantec Enterprise Vault 11.x? (Select two.)

What are two benefits of Symantec Enterprise Vault 11.x for Exchange? (Select two.)

What are two capabilities of enabling Symantec Enterprise Vault 11.x for Exchange for Outlook Web Access/App (OWA) users? (Select two.)