Weather files not working P50/P90 run

Below is the error when i run the P50/P90 analysis and the log file shows this error in every year in the Chicago folder and also with all the files in the Rockford folder.

Line 1 has 7 columns with this data "94846 CHICAGO IL -6 41.783 -87.75 190" and all the .csv files are the same and the error msg says 10 are required.




\Historical NSRDB 1961-1990 Beta\IL ROCKFORD/94822_1962.csv error reading header (line 1). At least 10 columns required, 7 found.

Hello,
I just tested the P50/P90 simulations with the TMY2 Rockford IL historical files in the latest update of SAM 2015.6.30 and did not encounter any problems.
Is it possible that you inadvertently modified some of the files in the collection? That can happen if you open the files in Excel and then save them because Excel can change formatting of dates and other numbers. If you are using OS X, Excel sometimes saves CSV files with line endings that do not work in windows.
If you do not think you modified the files, would you mind [url=mailto:sam.support@nrel.gov?subject=Problem%20with%20historical%20TMY2%20files%20from%20support%20forum t=_self]emailing me[/url] a copy of the 1962 file so I can test it?
You may find the Weather File Checker macro useful. You can find it by clicking the Macros button at the bottom left of the SAM window and then choosing the macro from the list.
Best regards,

Paul.