Prepare CSV files with GPT-4

This workflow generates CSV files containing a list of 10 random users with specific characteristics using OpenAI's GPT-4 model. It then splits this data into batches, converts it to CSV format, and saves it to disk for further use. The execution of the workflow begins from here when triggered manually. "OpenAI" Node. This uses the OpenAI API to generate random user data. The input to the OpenAI API is a fixed string, which asks for a list of 10 random users with some specific attributes. The attributes include a name and surname starting with the same letter, a subscription status, and a subscription date (if they are subscribed). There is also a short example of the JSON object structure.

Help me set up the n8n workflow "Prepare CSV files with GPT-4" (https://n8n.io/workflows/1967). It uses: OpenAI. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.