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You can also export or convert your raster data (raster dataset or mosaic dataset) into tiles, rather than a single raster dataset, using the Split Raster tool or the Raster To DTED tool. If a NoData value is not specified, the program will find an empty value to use as the NoData placeholder, which may not be desired or expected. Specifying the NoData value will allow you to control the pixel depth and the value that will store NoData.
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When a graphic is used to clip your data, NoData pixels will most likely exist in the output. When exporting your data using a selected graphic to a file-based raster dataset, it is recommended that you enter a NoData value. tif for TIFF file format, or no extension for an Esri Grid or a raster dataset in a geodatabase. When you name your output raster dataset, specify. ArcGIS is able to view many different raster file formats, but it is only able to output a raster dataset as an Esri BIL, Esri BIP, Esri BSQ, Esri Grid, BMP, ENVI, ERDAS IMAGINE, GIF, JPEG, JPEG 2000, PNG, or TIFF format. You can store your rasters in a file-based system or a geodatabase (personal, file, or ArcSDE). There are many different raster dataset formats, which are normally differentiated by their file extensions. The second way to export or convert raster data is using the Copy Raster tool. If you export your data with the Selected Graphics (Clipping) option, your image extent will be the union of your selected graphic and the extent of the raster.