Final answer:
To import cases from a file without applying routing rules in Dynamics 365 for Customer Service, you need to open the application, select Cases from the Service Management section in the site map, and then use the import feature.
Step-by-step explanation:
- Open Dynamics 365 for Customer Service.
- In the site map, go to Service Management and select Cases.
- Click on Import and follow the prompts to import cases from the file.