You must use official ZKTeco software (like ZKTime) to decrypt and import the file, or connect the machine directly to your network via TCP/IP to pull logs using the ZK SDK. 2. Missing Employee Names
Download and install the ZKTime software compatible with your device model.
: ZKTeco terminals have a log capacity limit (e.g., 50,000 to 100,000 logs). If the terminal memory fills up, it may stop writing new events to the file. Ensure you clear the device log history through the terminal menu after taking a successful backup. To help narrow down the solution, tell me:
# Simple Python script to read and parse a ZKTeco attlog.dat file import pandas as pd file_path = 'attlog.dat' # Read space/tab delimited file try: data = pd.read_csv(file_path, sep=r'\s+', names=['User_ID', 'Date', 'Time', 'Verify_Mode', 'Punch_State', 'Work_Code', 'Device_ID'], header=None) # Combine Date and Time columns data['Timestamp'] = data['Date'] + ' ' + data['Time'] data = data.drop(columns=['Date', 'Time']) print("Successfully parsed logs:") print(data.head()) # Export to clean Excel sheet data.to_excel('Parsed_Attendance.xlsx', index=False) except Exception as e: print(f"Error reading file: e") Use code with caution. zkteco dat file reader
: Right-click the .dat file, select Open With , and choose your text editor.
This comprehensive guide explains how to read ZKTeco .dat files, extract the data using official tools, and convert the files into readable formats like CSV or Excel. Understanding the ZKTeco .DAT File Format
Each field in this sequence typically corresponds to a specific piece of data: You must use official ZKTeco software (like ZKTime)
The software will parse the binary data and display logs including , Check-in/Out Time , and Verification Mode . Developer Integration (Advanced)
Here is a simple Python script to read an attlog.dat file and convert it into a clean, readable CSV:
: Used for specific access control models. In these, you navigate to the Attendance tab and select Import Transaction Log to locate your FingerTec Technical Blog How to Import the .dat File Preparation : Ensure the file (usually named 1_attlog.dat or similar) is saved in an accessible folder on your PC. Open Software : Launch your ZK management tool (e.g., ZKBio Time Navigate to Import ZKTime.Net USB Disk Management Import Data from USB ZKBio Time Attendance Transactions Select Folder : Point the software to the folder containing your : ZKTeco terminals have a log capacity limit (e
: A desktop-based management system that supports importing transactions via USB.
How the user authenticated (e.g., 0 for Password, 1 for Fingerprint, 15 for Face).
Official support ensures compatibility with most ZK devices (e.g., K40, F22, F18). 2. Time Management Software (TCMS V3/Ingress)