If you search for something like "Flexlm license usage report" or "Flexlm license usage monitoring" you'll find that in and of itself, Flexlm does not maintain a database of usage info. You can, however, get other software, or maybe even write your own, to periodically query the license manager for the current users. For example, every 5 minutes it asks for the current license status, and saves the results. Getting the data into an Excel spreadsheet would probably not be too hard, as long as it's written in a compatible format, like CSV. Maybe the commercial software out there to do this already handles the formatting.
