Is it possible to import data from an Excel file?

Yes it is, you can use our Import Data app: http://apps.jotform.com/app/import_data

Please check this guide to help you accomplish this: http://www.jotform.com/help/308-Import-App-Easily-import-your-Excel-or-CSV-data-into-JotForm

Let us know if you have more questions, and if you need anything else please open a new thread, we will be glad to assist you.