You can export multiple symbols in a single operation, using the command MAPSYMBOLIMPORTEXPORT or a Microsoft VBA script.
Export symbols to symbol libraries or XML files.
To export symbols using a user interface
Generally you can export the symbols to a symbol library (*.layer) or an XML file. If you select multiple symbols in step 3, you may see only Symbol Libraries (*.layer) in the Save As type drop down.
To export symbols without using a user interface
After you finish typing one symbol name, use Enter to continue to input the next symbol name. Use ESC to break, and system will jump to next step if you have input valid symbol name(s) or the MAPSYMBOLIMPORTEXPORT command will end with message 'No symbol was chosen for the export!'
The Layer option requires the full path of a layer file; XML requires the path to a folder.
CMDDIA 0 FILEDIA 0 _MAPSYMBOLIMPORTEXPORT _EXPORT symbol1 symbol2 _LAYER "C:\Test\export.layer"
The script for exporting all symbols to XML in path c:\temp would be like this:
CMDDIA 0 FILEDIA 0 _MAPSYMBOLIMPORTEXPORT _EXPORT _XML "C:\temp"