Arccatalog converts spatial data by projection
1. Select arctoolbox in the tool icon, open the arctoolbox window, select the Search tab, and search for "project". In the result, double-click the project or batch project item, you can select a single layer or perform bulk projection conversion on multiple layers.
2. Take the project window as an example. Select the target layer, set the output path and file name, open the ing projection coordinate system dialog box, select, and select the projection coordinate system information file, as shown in *. prj file, application, OK.
3. view the layer file in the output path that completes Coordinate System Conversion.
Projection Coordinate System for browsing spatial data:
Arccatalog, double-click data in the directory, and select the metadata tab-spatial. on this page, you can view the data projection information.