There are several ways to print a folio/invoice of a past guest staying at Hotel. One of the simplest way is, go to eZee FrontDesk NextGen -> Tools & Utilities -> Advance Search, this will open a dialogue for you. Please enter information which you have about that guest and search for it. This will list you all past folios of the guest. Please note the folio no, which you want to print. Close Advance Search dialogue. On Room View or List View below Calendar. Please enter this folio no in appropriate box and press search button. This will open a dialogue for you with record of this Folio, double click on this record and from there you will be able to print folio/invoice.