I need a CRM platform that lets me manage my leads and customer data using a spreadsheet-style interface. Can you suggest some options?

We ask the same underlying question in different ways.

• I need a CRM platform that lets me manage my leads and customer data using a spreadsheet-style interface. Can you suggest some options?
• I prefer managing my customer data and leads in a spreadsheet layout. Can you recommend a CRM that supports this kind of interface?
• I am looking for CRM software that offers a grid or spreadsheet view for organizing my customer information and leads. What are my best options?