In order to Import the services, to begin with:
Go to Setup >> Services.
Now, Click on Options >> Download the Sample File.
Add all services data in the same Sample file, Save the file
Once the Data is added in the File, Go to the Options again and click on the Import Services as shown below:
Select the same file with the same name and format that contains the service data and click on SAVE. Here, you can Import the services like this.
To Export the services, just click on the Export Services under the Options from the list above. The services will therefore export.
Additionally, for your reference, here is the tutorial video: