How to bulk load values in value set

Summary:

Content (please ensure you mask any confidential information):

Hello,

We are importing values from one instance to another; we did create value set manually however there are almost 2000+ value set values which needs to be loaded. This became a hassle to do it manually, how else can we bulk upload this in system ?

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

25a

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