Checking serial numbers

Hello, 

I need to find a way to create a section/field on a page for my customers to check serial numbers of the items. 

Basically user should be able to input a serial number in the text field and click "Check" button. Then site should check whether or not whatever user wrote is in my database and therefore give the user either green tick or a red X, or something like that as a confirmation. 

And I have that serial numbers database in Excel sheet. 

What do I do? How do I make this work? Is there some kind of addon for that? 

Something like this top bar?

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