eNC3 - Step-by-Step Guides These step-by-step guides walk you through each stage of the filing process: Before you file: How to enter submitter information How to test file formats When you file: How to make a File Upload or Manual Entry submission How to make a Payment Only submission After you file: How to review and complete your submission Excel Option How to use the W-2 Text File Generator W-2 Text File Generator Troubleshooting