I have a requirement like this. In Sharepoint there is list (lets call it master list) It has all required columns with their respective types. A user need to be able to import data from Excel file (single Sheet - with the same set of fields as sharepoint list). During that import data on a list should be deleted and replaced with new coming from Excel file).
Which Sharepoint solution would be best for this requirement? Should I create SharepointHosted-AddIn or ProviderHosted-App or webpart or something else.
I was reading about that and am very confused.