> For the complete documentation index, see [llms.txt](https://docs.theiamarkerless.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.theiamarkerless.com/axiom-v2025/theia3d-documentation/data-formats/theia3d-workspaces.md).
# Theia3D Workspaces
Example files that make up a single Theia3D workspace.
A workspace folder contains the video and data files of a saved workspace. The video files are named according to their unique camera ID. The .t3d and .p3d files contain the analysis results. It is important that the contents of the workspace folder are not modified, including moving files in or out of the folder.
Theia3D workspaces can be used to save data at various stages of analysis, but are most useful for saving analyzed data that will be reviewed later. When a fully analyzed movement trial is saved as a Theia3D workspace, the saved data includes the 2D videos, calibration file, and all data associated with the analysis. Therefore, when a saved workspace is loaded, you can immediately review the analyzed data in the 2D and 3D viewers.
To open a Theia3D workspace while Theia3D is open, use [File > Load Workspace](/axiom-v2025/theia3d-documentation/theia3d-dropdown-menus/file-menu.md) and select the folder containing the workspace files.
Top open a Theia3D workspace while Theia3D is closed, you can double-click on the results P3D file.
{% hint style="info" %}
Workspaces saved with Theia v2023.1.0.3160p19 or older will need to be reprocessed prior to opening
{% endhint %}
{% embed url="" %}
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