weather data interning

i want to input a weather data file that doesn't exist on the sam list , and i found the data for my study location in NASA but i failed to input the data manually and i want detailed description to input the data manually .

Dear Abubker,

Please see the "Weather File Format" topic in SAM's Help system for a description of the SAM CSV file format. You can use the Solar Resource File Checker macro to see if there are any problems with the file.

After you create the file, on the Location and Resource page, click Folder Settings to tell SAM what folder your weather file is in so that the file appears in the solar resource library list.

Best regards,
Paul.