Yes - when you create a file upload add-on, you can choose how many files the user can upload. As a result, you can use it to create an individual file upload field, or allow multiple file uploads.
If you require multiple file uploads, then you can achieve this either by creating a single field that supports multiple files; or multiple fields which allow one file each. We recommend choosing whichever option would be most intuitive for your customers.
You can also control other elements of the file upload field, such as the maximum file size and allowed file types.