Does anyone know an app or how to add something like excel for the customer to add items to orders?

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So I'm looking at offering Sports memorabilia grading... are there any apps that offer customers the ability to add their items with dropdown menus and blank spaces like the photos I have provided? something like a simple excel like product that could be attached to a customers account?Screen Shot 2021-04-25 at 6.19.59 PM.pngScreen Shot 2021-04-25 at 6.21.39 PM.png