To Export Blocks/Shared Cells from the Open File to a Cell Library
Key in EXPORT CELLS SHARED [destinationCellLibraryName].
For example, to export the shared cells in the current file to a file called blockCellLibrary.cel, enter: EXPORT CELLS SHARED c:\myDgns\blockCellLibrary.cel.
Tip: To export blocks or shared cells from a group of files, use the EXPORT CELLS SHARED key-in with the Batch Process utility.