To add a client logo to the report there are two options:
1. Manually Insert > Picture to the exported Excel report locally on your computer.
2. Add the logo to the Organizations tab and add the Organization to the RFP.
See this HB Help article: Organization (Client) Profiles
TECH NOTE: Logo size should be less than or equal 300x200 pixels.
Once the Client logo is uploaded to organization listing, then you would select it during Exporting or Creating a report template in the Bid Comparison Reports in Report Settings > Header.