The only other option in Anaplan is to use a process to set a filter parameter for each territory and use Anaplan connect (or similar ETL) to export the module using a different file name. This is not possible to do within Anaplan directly without creating separate export actions
So, (and I'm going to hate myself for saying this..... but), you might be better to export everything and use a third party personal productivity tool (!!!) to create and distribute the files!!