Click the Export arrow and click All features, Selected features, or All features in View Extent. Right-click the layer in the table of contents and click Data > Export Data. This applies to any workspace in ArcMap or a geoprocessing tool that is able to write new data. Once you have projected the copy, you can copy it into the new workspace and delete the first copy. As part of using the Project geoprocessing tool, you will be able to specify a datum transformation. Instead of directly writing to the new feature class, make a copy of the original feature class and use the Project geoprocessing tool to reproject that feature class to the coordinate system that you ultimately want to use. If your data's geographic coordinate system uses a different datum from that of the new feature class, you will likely write spatially inaccurate data. You can use the Project geoprocessing tool as part of a model or as you need it while working in ArcMap or ArcCatalog. With the Project geoprocessing tool, you can make a copy of your data, change its coordinate system, and transform the shapes in the data to use the new coordinate system. If you export data as a stand-alone feature class or to a file-based data source, it will have the same coordinate system as the source data. 
When you export data to a feature dataset in a geodatabase, it will use the coordinate system of the feature dataset.
When you export data from ArcMap, you can choose to create a new feature class using a different coordinate system than that of the source data, the coordinate system of the data frame or the coordinate system of the feature dataset to which you are exporting the data. ArcGIS Desktop Basic users can export features to a shapefile, file geodatabase, or personal geodatabase, while ArcGIS Desktop Standard and ArcGIS Desktop Advanced users also have the option of exporting to an enterprise geodatabase.Įxporting features to a new coordinate system
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