In most standard ZKTeco devices, the raw .dat file is separated by tabs or spaces. A typical raw line looks like this: 1 2026-05-25 08:30:15 0 0 0 0 Here is what each column represents:
Select (often saved as attlog.dat ).
Here is a lightweight Python script using the pandas library to convert the file: zkteco dat file reader
: Check if the employee ID on the device matches the ID in your payroll software. 3. Delimiter Alignment Issues in Excel Cause : Mixed spacing in the raw file.
If your text import loads all data into a single column, your machine is likely using a mix of spaces and tabs. Use the feature under Excel's Data tab, select Delimited , and check both Tab and Space as delimiters to separate the data cleanly. In most standard ZKTeco devices, the raw
ZKTeco time and attendance terminals generate a file named ATTLOG.DAT when you download logs via a USB flash drive. This file stores raw transaction data to save memory on the device.
When searching for a tool, match it to your exact device model and firmware. If unsure, export a small sample DAT and test locally. Use the feature under Excel's Data tab, select
Using a ZKTeco DAT reader utility , they import the raw file. The software instantly parses 10,000 rows of logs.
If you are currently struggling with a specific ZKTeco model and its DAT files, list your device model and firmware version in the comments below (if on a forum) or consult the official ZKTeco Wiki. The right reader is out there—you just need to match the key to the lock.
What are you currently using? (e.g., ZKTime.Net 3.0, BioTime 8.0, or none?)