How to open .ghdata file?

It looks to me like you are not. Sliders would be connected to separate inputs on a Data Output component to create the file, then in a separate GH file Data Input is used to read it. I put both in one file to keep this simple.

test_DOI_2024Jan11a2 (5.8 KB) (UPDATED)

By the way…

3. Attach minimal versions of all the relevant files