ARC/INFO interchange files are used to transfer coverages, INFO data files, text files such as AML macros, and other ARC/INFO files between various machines. An interchange file contains all coverage information and appropriate INFO file information in a fixed-length, ASCII format. It can be fully or partially compressed and uncompressed ASCII  depending upon the EXPORT option used.


For the COVER option, all associated INFO data files are written to the interchange file. For example, if the coverage name specified for <input> is geol, an INFO data file named geol.LABEL is saved in the <interchange_file> output by EXPORT. 


Exporting a grid can result in an export file much larger than the original grid, even when FULL compression is used. This is because each grid cell must be represented in the export file in ASCII format, which is less efficient than the grid's binary format.



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