Defining a shapefile's coordinate system by saving a coordinate system to a file

  1. In ArcCatalog, click the shapefile whose coordinate system you want to define.
  2. Click the File menu and click Properties.
  3. Click the XY Coordinate System tab.
  4. Click Save As on the Shapefile Properties dialog box.
  5. Navigate to the location where you want to place the coordinate system file.

    For example, place it in a shared folder on the network.

  6. Type a name for the coordinate system file and click Save.
  7. Click OK.

    The coordinate system file appears in the folder's Contents list.

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