Simplest Way to Downscaling the GCMs

A good idea on how to downscale the GCMs and how to interpolate GCM data is in Netcdf format as follows:
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Simplest way to downscaling is these steps:1- download your cmip5 data (is in Netcdf format)2- extract your time series with Netcdf-Extractor there is in: https://agrimetsoft.com3- Save your time series to excel(and historical data should be in excel file)4- calculate this Coefficient c=Mean of Historical data/Mean of GCM(CMIP5 data) data5- multiply all GCM(CMIP5 data) data by c CoefficientYour data downscaled

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