Travel Agents, how do you receive -> store -> access Hotel Rates?

I'm curious to know how travel agents or advisors or partners (anyone who books hotels for customers) handle B2B hotel rates on a daily basis.

Would love to know,

• How do you receive hotel rates? (websites, email, PDFs, Excel sheets, Word documents, any portals, access to drive folders etc)
• How do you store/manage them? (Just group files into folders, Excel, Google Sheets, any in house tools, CRM, etc)
• How do you then access those rates for your bookings?