What is the functionality of the Index folder that is created for an ArcGIS Pro project?

[LynnCarlson__GISP]

Creating a new lesson plan for students and would like to be able to tell them what the Index folder does and why it is important for an ArcGIS Pro project.  Have been unable to find any specifics and I know they will ask.

[DanPatterson_Retired · Accepted solution]

found this

Indexing project items—ArcGIS Pro | ArcGIS for Desktop

[LynnCarlson__GISP]

Perfect!  Thank you for responding so quickly!  I had missed this in my searching....