AppShelf: Export... > CSV File...
Edit in Excel
Insert a column in second place with this formula:
="LICENSE INFO:" & CHAR(13) & E1 & CHAR(13) & CHAR(13) & A1:J167: " & F1 & " (" & J1 & ")" & CHAR(13) & CHAR(13) & "LICENSEE: " & CHAR(13) & C1 & " (" & D1 & ")" & CHAR(13) & CHAR(13) & "PUBLISHER:" & CHAR(13) & H1 & CHAR(13) & CHAR(13) & "PRICE: " & G1
Copy/Paste Special (Text) in "Software License" template found in https://helpdesk.lastpass.com/wp-content/uploads/Import_format_Secure_Note1.zip
Save, import in Lastpass.