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> Russ, > > Sure, I want to be a "friendly user", I'm glad to try the ncgen4. > > Many thanks! > Chen > Howdy Chen! I have fixed the int64 problem, and I have run your program with the fix. Here's the output I get now: ### Before write to netcdf4 file, lats(1)= 1000000000001 ### Before write to netcdf4 file, lats(2)= 1000000001 ### Before write to netcdf4 file, lats(6)= 21474836470 NetCDF: Numeric conversion not representable %%% After read from netcdf4 file, lats(1)= 1000000000001 %%% After read from netcdf4 file, lats(2)= 1000000001 %%% After read from netcdf4 file, lats(6)= 21474836470 *** SUCCESS writing example file sfc_pres_temp.nc! Get the netCDF daily snapshot here: ftp://ftp.unidata.ucar.edu/pub/netcdf/snapshot/netcdf-4-daily.tar.gz Please let me know if this doesn't help. Thanks, Ed Ticket Details =================== Ticket ID: YRL-141737 Department: Support netCDF Priority: Normal Status: Closed