Reporting on Guest Access

[HN1982]

Hi,

I have below requirement, can any one help me on generating report for external user.     

   1.  Report for all Guest Users / External Users in the organization along with the resources (site, document library, documents, lists) they have access to / Identify all files / folder /  and any other resources shared with external users.

 2. Can we generate reports from Office 365 Admin center or cloud app security? What are the other options?

[#2]

The only site where you can check this info. is the Audit Log Search...PowerShell could be also another option you could try