Ask HN: Looking for a spreadsheet importer wizard with validation

Hello, I'm looking for a spreadsheet importer with validation that can be used in house as data being uploaded is sensitive.

I looked and found https://www.pulter.co/ which seems to do the trick but we can't let someone else process the data.

Looking for a wizard type UI that kinds the user through the import, assign columns to our columns, then validates data before final import.

Thanks