Adobe folder taking up way too much space

[crashinto24375666l43w]

I just did a computer upgrade for a client and discovered the Creative Cloud Libraries folder in Application Support is taking up over 110 GB of space. A peek inside and I see a couple of folders in the dcx sub-folder are taking up 50+ GB each. They consist of all Illustrator files (.ai), about 7000+ total, and date from now to far back as November 2018. 100+ GB and 7000+ files seems a bit too much. What are these exactly? How can I trim this down to free up space?

Example of their location:

/Users/john/Library/Application Support/Adobe/Creative Cloud Libraries/LIBS/CC3D10A47150946E7F000915_AdobeID/creative_cloud/dcx/7c6d94fe-ccfb-42bc-91f0-49fee5af9f0d/components

[Nancy OShea]

Why don't you ask John what he keeps in his Adobe CC Libraries?

He can free up space himself by logging-in to his Creative Cloud account. I would start with unused Fonts and Adobe Stock images. But he may have saved color swatches, paragraph styles, and other assets there that he shared with collaborators. 

https://helpx.adobe.com/creative-cloud/how-to/creative-cloud-libraries.html

[crashinto24375666l43w]

But it's 110+ GB of *.ai files - would fonts, stock images, swatches, etc. take up 110 GB of disk space?

What about re-doing the migration by uninstalling all of Adobe CC apps, deleting the whole Adobe folder in Application Support, but this time only re-installing the Adobe CC apps and NOT re-transferring the Adobe folder? What would he be missing in this scenario? Or would that stuff automatically download again upon launch of an Adobe app?

[Peru Bob]

 How can I trim this down to free up space?

By @crashinto24375666l43w

If the computer is short of disk space, a better solution would be a larger drive.