Logger is a software add-on for LabVIEW that provides a logging utility modeled on the Apache Log4j library. You can use this add-on to create an application logging and error-handling system for any LabVIEW application. The add-on writes and saves logging statements as comma-separated value (CSV) files. Log files are organized by calendar date and file name to reduce clutter and on-disk storage space. You can use the add-on to configure the logging to automatically close and create a new log file based on file size. Also, Logger can broadcast logging statements to multiple listeners for display, file I/O, and more.