Hi Creative Locust, please file a support ticket from within your account, and our team will get the FF enablement done for you.

We do not currently support upload of Zip file uploads (the list is https://developer.harness.io/3k-docs/platform/variables-and-expressions/runtime-input-usage/#upload-files-as-runtime-input). I will take this ticket as a request for this file type. Could you explain the use case that requires this to help us prioritize?