Extract Gmail attachment data with OpenAI into Google Sheets

## 3. Use LLMs to Extract Values from Data [Read more about Basic LLM Chain]({{ $env.WEBHOOK_URL }} Large language models are perfect for data extraction tasks as they can work across a range of document layouts without human intervention. The extracted data can then be sent to a variety of datastores such as spreadsheets, accounting systems and/or CRMs. Tip: The "Structured Output Parser" ensures the AI output can be inserted to our spreadsheet without additional clean up and/or formatting.