When exporting the model to CAD format or DWF, you can specify a name or a prefix for the exported files.
First open the related Export dialog: click File tab ExportCAD Formats, and select the desired format for export. Specify the export setup, view/sheet set, and other settings, and click Next.
The Export dialog displays the following fields:
When exporting multiple files, for File name/prefix, enter a common prefix for the exported files. For Naming, select the appropriate option.
For example, if you are exporting the Level 1 floor plan and north elevation views to DWG files and you enter the prefix Country House, the resulting exported file names are Country House Elevation North.dwg and Country House Floor Plan Level 1.dwg.
To specify the name of a single export file, enter the file name. For Naming, select Manual.
In the Export dialog, for Naming, use one of the following options to name the exported files:
Revit Sheet/View: Project Name-View Type-View Name
Revit Sheet: Sheet Name or Revit View: View Type-View Name