Yes, there is generally a manual override available for fields in software programs. However, the availability and specific steps for overriding Field 19 (Date) in the "AnyForm" program for Windows would depend on the program's features and customization options. It is recommended to refer to the program's manual or contact the support team of "AnyForm" for guidance on how to update and override Field 19 to MM/DD/YYYY format or leave it blank.