Xecrets File Ez [Beta] and Xecrets File Command Line [Beta] are now being beta tested, so they can't be purchased yet and thus run as the free versions. This means that premium features are unavailable in Xecrets File Ez [Beta]. For Xecrets File Command Line [Beta], the restriction only applies when using some specific features intended for programmatic use by organizations. Normal interactive and script use is unrestricted always. There is no restriction on the size of files for decryption.
To apply for the BETA program and get all features, please contact support. If you're accepted you'll receive further instructions then. We'll give you a free license for a year as a token of appreciation once we release it.