Exporting data allows you to share data across multiple geodatabases and optionally change the format of the data.
There are several ways to export data using ArcMap and ArcCatalog:
Using the context-sensitive menu in ArcCatalog
Using geoprocessing tools
Using the Extract Data Wizard in ArcMap
Using the Export Data command in ArcMap
Exporting data using the context-sensitive menu or through geoprocessing employs the Conversion tools in ArcToolbox. Refer to the Conversion toolbox help for information regarding these tools and their parameters.