All the data for a single portfolio—decedent information, security identifiers, lot sizes, and all the data retrieved for any evaluations for any number of dates—are all stored in a single .EVP file.
Each EVP Office application has a unique default directory for storing their portfolio files, but the files themselves can be loaded into any of the other applications. They can each be copied to another location, sent via e-mail, or backed-up as a single file.