Login Page - Create Account

Support Board


Date/Time: Sun, 29 Jun 2025 00:28:52 +0000



Post From: Error downloading Data

[2021-08-17 11:57:01]
Sierra Chart Engineering - Posts: 104368
This is the problem:
HD Request # 11 | Header check failed: Unknown Intraday file type. Header error. Failed to open the Intraday data file for download. | 2021-08-17 13:05:43.618
HD Request # 11 | Error downloading historical Intraday data for NQU21-CME. Not downloading any Intraday data for symbol NQU21-CME. | 2021-08-17 13:05:43.618

For every symbol, where you are getting a header error , delete the chart data file following these instructions:
Chart Data and Chart Data Files: Deleting a Chart Data File
Sierra Chart Support - Engineering Level

Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy:
https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation

For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service:
Sierra Chart Teton Futures Order Routing