Best import and export selection options - how to keep it the way the client has it without adding your codes to their project?

you have 2 options

option #1

copy the project then delete the codes then export it and give it to the client

option #2

during the import process on the Update Project Options have the client select modify 

in the data type: global under the Assignment Code click in the action column and change the action to do not import 

also under the Assignment Code Values click in the action column and change the action to do not import 

in the data type: Project under the Activity Code Values click in the action column and change the action to do not import

also under the Activity Codes click in the action column and change the action to do not import