Download DView
DView is used by BEopt and other programs for visualizing hourly simulation output. It is also available as a standalone application for visual analysis of time-series data at any timestep (e.g., hourly or sub-hourly). DView opens CSV files and also recognizes several weather data file formats, including TMY2, TMY3, and EPW files.
https://beopt.nrel.gov/downloadDView