Follow these steps to save your meshes' crease information to an Alembic file. 
	 
Note: In Maya 2015 Extension and later, turn on 
		
Write Creases in the
 Alembic Export window to export creases. To open this window, select 
		
Cache > Alembic Cache > Export All/Selection to Alembic > 
		  
. For more information, see 
		
Alembic Export Options. 
	 
 
To export mesh creases to an Alembic file
- Select the transform node of the mesh that you want to export an Alembic file. 
		
 
- Add the Sub Division Mesh attribute to the mesh's shape node by doing the following: 
		  
 
		
 
- In the 
		  Extra Attributes section, turn on Sub Division Mesh. 
		
 
- In the 
		  Animation menu set, selectCache > Alembic Cache > Export All/Selection to Alembic > 
			 
. 
		 
- In the 
		  Alembic Export window, expand the 
		  Attributes section. 
		  
Under 
			 Attribute, select SubDivisionMesh, and then click 
			 Add. 
		  
 
		 
- Click 
		  Export Selection or 
		  Apply. 
		
 
When you export your geometry to an Alembic cache, the object's crease information will be included in the Alembic file.