Everyone has seen Excel's dropdown list as you type =formula.

Challenge. You have a column A(Company Name). As you start typing, a list should give u suggestions based on substring. The list of suggestions will be based on a list of company names(5000 Company Names) present in a different sheet.
Note: Performance is must. Lag must be very minimal

Challenge. You have a column A(Company Name). As you start typing, a list should give u suggestions based on substring. The list of suggestions will be based on a list of company names(5000 Company Names) present in a different sheet.
Note: Performance is must. Lag must be very minimal