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Arun, Thanks for providing the screenshots; they made it much easier to have ideas as to what's going on. The problematic file, wfrout.nc, which I'm guessing is from a WRF run, is probably not compliant with the Climate and Forecasting (CF) conventions for netCDF files (http://cfconventions.org/), and thus toolsUI is not able to properly make sense of the data. This is a known problem with WRF output. Here are some resources to help you fix it: https://www.unidata.ucar.edu/blogs/developer/entry/wrf_goes_cf_two http://www2.mmm.ucar.edu/wrf/src/utils/ncl/wrfout_to_cf.ncl http://foehn.colorado.edu/wrfout_to_cf/ I hope these help. Ryan > In the file where it shows *datatype as grid *I am able to fetch the data > while from other file where *datatype is vacant,* it is not possible to > fetch the data. I am able to read all the data in ncl (Linux version), also > the data is showing properly in *ncl_filedump* command. Ticket Details =================== Ticket ID: BRS-900510 Department: Support netCDF Java Priority: Normal Status: Closed