When an employee scans their fingerprint, face, or badge on a ZKTeco terminal, the device logs the event. These logs are stored internally and, when exported via USB, typically appear as a file named attlogs.dat . Key Characteristics: It is a flat-file database format.
It ensures data integrity. The software not only reads the logs but also matches them with User IDs, Names, and Departments, converting raw time stamps into readable attendance reports. zkteco dat file reader