Is there any spreadsheet to upload Classification Categories?

Summary:

In Setup and Maintenance -> Customers -> Manage Classification Categories, we have created a couple of categories.

Under a specific category, we need to create hundreds of codes, which could not be feasible to do it manually.

Is there any feature available to mass upload codes under a given Classification Category?

Content (required):

Version (include the version you are using, if applicable):

22.B

Code Snippet (add any code snippets that support your topic, if applicable):