# Exporting data from Tag Historian

**URL:** <https://forum.inductiveautomation.com/t/exporting-data-from-tag-historian/100869>\
**Category:** Ignition\
**Created:** [January 14, 2025, 5:30pm UTC](https://forum.inductiveautomation.com/t/exporting-data-from-tag-historian/100869 "2025-01-14T17:30:40Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Isabela\_Babcock](https://avatars.discourse-cdn.com/v4/letter/i/ee7513/32.png) [@Isabela\_Babcock](https://forum.inductiveautomation.com/u/Isabela_Babcock)\
**Post date:** [January 14, 2025, 5:30pm UTC](https://forum.inductiveautomation.com/t/exporting-data-from-tag-historian/100869/1 "2025-01-14T17:30:40Z")

</div>

Hello!

I'm looking to migrate about 500GB of Tag Historian data from Ignition to Canary Historian. I reached out to the vendor for guidance and they asked for the different export options available by Ignition.

The only information I found in the Ignition manual points to a CSV export as the only alternative: [Export Tag Historian to CSV](https://www.docs.inductiveautomation.com/docs/7.9/scripting/export-tag-historian-to-csv#history-tag-search-and-export)

Given the amount of data to be transferred, CSV wouldn't be feasible it seems. Has anyone dealt with this before and could provide guidance on the options available for exporting large amounts of Tag Historian data out of Ignition? This would be a one-time transfer so the old data can go into the new historian data source, which will be Canary Historian.

Thanks in advance!

---

<div class="post-metadata">

**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [January 14, 2025, 5:58pm UTC](https://forum.inductiveautomation.com/t/exporting-data-from-tag-historian/100869/2 "2025-01-14T17:58:56Z")

</div>

Scripting is the key.

Perhaps you could study and adapt the techniques in this Exchange Resource:

> [@Tag Report Utility](https://forum.inductiveautomation.com/t/tag-report-utility/95299):
>
> New resource just uploaded to the Exchange (pending review). Also available here: [https://www.automation-pros.com/TagReportUtility/](https://www.automation-pros.com/TagReportUtility/) I intend to publish at this link as well as in the Exchange going forward. Announcements will be in this topic. (: Highlights: Provides a Perspective Popup View that provides a user interface to system.tag.query() that entirely replicates the functionality of the Designer's Tag Report Tool. Provides a Perspective Embedded View that provides Time Span selectio…

Transfer to another historian would naturally need everything to be retrieved in "As Stored" format.