of 7— Subscribe to ChatGPT Plus

What you'll accomplish

By the end of this guide, you'll be able to upload your operational Excel spreadsheets into ChatGPT Plus and get real data analysis — charts, trend identification, anomaly detection, formula generation — without knowing Python or needing a data analyst. The kind of analysis that used to take 4 hours now takes 20 minutes.

What you'll need

ChatGPT Plus subscription ($20/month at chat.openai.com)
An Excel or CSV file with your operational data (throughput, OTD, labor costs, quality metrics, etc.)
Time needed: 20 minutes to set up; 20–45 minutes per analysis session after that
Cost: $20/month for ChatGPT Plus (free version does NOT support file uploads)

How-To Guide: Advanced Data Analysis with ChatGPT Plus

Step 1: Subscribe to ChatGPT Plus

Go to chat.openai.com. Click Upgrade to Plus in the left sidebar. Enter payment information. $20/month — cancel anytime.

What you should see: After upgrading, the model selector at the top of the chat window shows "GPT-4o" or similar. The free version shows "GPT-4o mini."