# Use cases/ Experimentation with ChatGPT
ChatGPT API Usage using - [Llamaindex](https://gpt-index.readthedocs.io/en/latest/index.html), [OpenAI](https://openai.com), [Guardrails](https://shreyar.github.io/guardrails/), [LangChain](https://python.langchain.com/en/latest/index.html) and more...
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# 1. [Unstructured to Structured](./unstructuredToStructured/) ( pdfs invoices to pandas DataFrame)
### Source PDF files e.g.
### Target DataFrame e.g.
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# 2. [NewsLetters](./newsLetter/)
Demo
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