The raster package in R has the possibility to write a specific format using the function [writeRaster][1]. You can use for example GTiff. Here the short list of supported data formats. I assume you need a multiband format. Type Provider extension Multiband support --------------------------------------------------------- raster Native .grd Yes ascii ESRI Ascii .asc No SAGA SAGA GIS .sdat No IDRISI IDRISI .rst No CDF netCDF .nc Yes GTiff GeoTiff .tif Yes ENVI ENVI .envi Yes EHdr ESRI .bil Yes HFA Erdas .img Yes [1]: http://www.inside-r.org/packages/cran/raster/docs/writeRaster