// Create a raster workspace. IWorkspaceFactory workspaceFactory=new RasterWorkspaceFactory(); // Open the workspace pointing to the input folder. IWorkspace workspace=workspaceFactory.OpenFromFile(@"c: RDs", 0); IRasterWorkspace rasterWorkspace=(IRasterWorkspace)workspace; // Open the .afr file as a raster dataset. IRasterDataset myRasterDataset=rasterWorkspace.OpenRasterDataset( "CompositeBand.afr"); // Open the pointer The workspace of the output folder. IWorkspace outputWorkspace=workspaceFactory.OpenFromFile(@"c: emp", 0); // Use the SaveAs interface to convert raster data The set is converted to an ISaveAs object. ISaveAs saveAsRaster=(ISaveAs)myRasterDataset; // Use the SaveAs method to save the raster dataset in the specified format. saveAsRaster.SaveAs(" outputFile.tif", outputWorkspace, "tiff");