ORA-19563

Error: ORA-19563: string header validation failed for file string

Causa: When opening the file to be placed in a copy or backup set, to be inspected, or used as the target for an incremental restore, the header was not recognized as a valid file header for a file of the indicated type (datafile, archived log, or control file), belonging to the current database.

Acción: Ensure that the correct files are being specified for the copy or backup operation.