I am creating a CSV file (via Excel) to create a report that will be uploaded to a government entity. One of my data requirements is a product UPC code. The file format (as specified by the state) allows for 18 digits in this particular field. My problem is when I "save" the file in the CSV format, any number in this field that is 12-digits or larger is rounded to another number when the file is saved. I have tried everything that I can think of, and nothing seems to work. Is there anything I can do to format this field so that it will accept and save 12-digit numbers? I am VERY frustrated!!! Thank you for any help that you may be able to provide.