I'm sure there's a SQuirreLy way to do some kind of query but I tend to stay away from those because they make my brain hurt.
When you say "files in a folder" are you talking about uploaded files in a particular category? I don't know how to do that for categories but there is a fairly simple way to get a list of all the documents in a group or space. You can use the API Explorer and configure it something like the screenshot below.
- Pick a date range wide enough to encompass all your content.
- Create a Destination filter with the name or url of your group or space.
- Create an Action filter using activity_create_document. This will capture a log of every time a document was created.
- Click the "Download Content CSV" button, which will create a csv file listing all of those create events, including a column with the document name.
The only down side to this approach is it doesn't distinguish between uploaded documents and Jive documents.
Does it seem short sighted of Jive to not provide an easy way to this? It does to me.