Quick Shopify Script Development

I sell personalized shirts and other merchandise on my Shopify store. I have an excel sheet with around 100K rows of people's names that needs to be searchable on my store. Based on the search results, the visitor is shown a link to a collection that they can purchase from. All this data is in the Excel sheet (Name, collection link etc)

I need a way to upload the sheet and add a search functionality to the store. The search should be immediate and quick. If this can be done using Metaobjects, that is fine too.