Open Source Document Management

Hi,
I tried to search the values in the extensions properties by selecting them in the Search function. However, none are working. Is there a configuration that is required for this to work?

This is strange, searching for documents by extension is a very simple function, just enter the file extension you are interested in finding and press the Search button.
If you don't see results, it is probably because your user does not have read rights to the folders containing the documents.
Check the system logs for errors: Administration, System, General, tab Log