A DAT file from a ZKTeco terminal is a binary or encrypted file format created when you export attendance or user data via a USB drive 1.2.1 .
What does the look like when opened with Notepad? (e.g., plain text numbers or random, unreadable symbols?) What is the exact model of your ZKTeco device? Share public link
A ZKTeco .dat file serves as a local repository for transaction logs, including employee IDs, timestamps, and movement types (Check-In/Check-Out). These files are typically retrieved from a device via a USB flash drive when a direct network connection is unavailable. Because the
is vital for any organization seeking to bridge the gap between raw hardware logs and actionable HR insights. Purpose and Functionality zkteco dat file reader
: Contains the actual time attendance logs (User ID, timestamp, verification mode).
Guide you through setting up to read the file. List the best software for specific ZKTeco models .
The software will parse the binary data and display clear, readable employee attendance sheets, which you can filter by date or department. Method 2: Use Third-Party ZKTeco DAT File Converters A DAT file from a ZKTeco terminal is
Instead of waiting to dump the .dat file to a USB, many IT professionals use the ZKTeco SDK (Software Development Kit) to create a .
import csv input_file = "attlog.dat" output_file = "attendance_report.csv" # Define headers based on ZKTeco standard structure headers = ["User ID", "Timestamp", "Verification Method", "Punch State", "Work Code", "Reserved"] with open(input_file, 'r') as dat_file, open(output_file, 'w', newline='') as csv_file: writer = csv.writer(csv_file) writer.writerow(headers) # Write the header row for line in dat_file: # Split line by whitespace/tabs and strip extra spaces data = [item.strip() for item in line.split() if item.strip()] # Ensure it's a valid data row (combining date and time if split) if len(data) >= 5: # Recombining Date (index 1) and Time (index 2) if split by space user_id = data[0] timestamp = f"{data[1]} {data[2]}" ver_method = data[3] punch_state = data[4] work_code = data[5] if len(data) > 5 else "0" writer.writerow([user_id, timestamp, ver_method, punch_state, work_code]) print(f"Success! Parsed data saved to {output_file}") Use code with caution. Troubleshooting Common Issues
A (often labeled attlog.dat , user.dat , or oplog.dat ) is the raw data file exported from ZKTeco biometric terminals when using a USB drive to download logs. These files contain: Employee ID: Unique identifier. Share public link A ZKTeco
Once imported, navigate to the Reports section. The software will match the User ID from the .dat file with the employee names stored in your software database. Method 2: The Quick Way (Using Text Editors and Excel)
Download and install the ZKTime software compatible with your device model.
If dates look incorrect, check the device system time. If the internal clock battery (CMOS) on the ZKTeco terminal dies, the device resets to its default year, resulting in older timestamps in your log file. 3. Delimiter Alignment Issues in Excel