Discovery is the process of gathering and exchanging evidence for a court case from the other side. In general, Texas has very few official legal forms.Certificate of Service. Enjoy our new and improved forms page! On this page, you should fill in the location that the document is to be filed with, either the trial court or the Court of Appeals. Certificate of Service. In a civil case, the notice of appeal must be filed with the US District Clerk's Office within 30 days after the judgment is entered. The numbers on these instructions correspond with the numbers in the boxes on the form. Discovery Agreement; VOUCHER!!!! Don't forget appointment order. Vouchers.