Roboform related propriety file format.Passcard file used by RoboForm, a secure password manager and form filler application; contains online passwords that have been entered by the user; used to automatically enter passwords into online websites. Once a password is saved, RoboForm offers to fill it when the user revisits the same login page. RFP files are stored in an encrypted format. Passcard files, along with other RoboForm user files, are stored in a user data folder, which can be viewed by selecting the following RoboForm menu option: RoboForm ? Profiles ? Explore Folder.