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ZKTeco devices (e.g., K40, K80, SF1000, T6 series) export data in .dat files for:
These files are typically generated via:
logs = read_attlog('attlog.dat') for uid, time in logs: print(f"User uid: time")
Step 3 – Handle encrypted DAT files
# Pseudocode – requires pyzk or custom AES
from pyzk import ZK
conn = ZK('192.168.1.201', port=4370)
conn.connect()
attendance = conn.get_attendance() # reads DAT-equivalent via network
A .dat file generated by ZKTeco time attendance machines (like the popular F18, iFace, or K40 models) is a proprietary database file. It contains the raw logs of employee clock-ins and clock-outs. zkteco dat file reader
Because ZKTeco uses a specific database structure to store this information efficiently on the device, the file is not a simple text document or Excel spreadsheet. It is binary data. Trying to open it with Notepad will only show you random symbols and characters.
To read this file, you need a tool that understands ZKTeco’s database architecture.
"The DAT file is empty or corrupted."
If you copied the .dat file manually but it has 0KB size, the copy process failed. Ensure you safely eject the USB
Understanding and Working with ZKTeco Data Files: A Guide to ZKTeco Data File Readers ZKTeco devices (e
ZKTeco is a well-known brand in the biometric security solutions industry, providing a range of products such as fingerprint and facial recognition systems. These systems generate data files that need to be read, processed, and analyzed for various purposes, including access control, time attendance, and security monitoring. In this article, we will explore the concept of ZKTeco data files and the tools required to read them, focusing on ZKTeco data file readers.
These files are structured in machine-readable blocks. Without the correct parser, opening them in Notepad or TextEdit will render gibberish—a mix of symbols, null bytes, and fragmented text. Attempting to manually edit or decode them almost always corrupts the data.
Why does ZKTeco use DAT files?
A well-functioning reader will display: | User ID | Name (if available) | Date | Time | Status (Check-in/out) | Verification method | |---------|---------------------|------|------|------------------------|---------------------| These files are typically generated via: logs =
Inspect for anomalies. If dates show as “2050-12-31”, the reader is using the wrong offset.
For organizations with 50+ employees, manually running a DAT file reader every day is inefficient. The modern solution is automation.
When searching for a tool, match it to your exact device model and firmware. If unsure, export a small sample DAT and test locally.