Question: Can you recommend a tool that provides AI-powered data analysis directly from PDF, Excel, Word, and PPT files?

For an AI-powered data analysis tool that can handle a variety of file types, ChatDOC is a good option. You can analyze and summarize documents in PDF, DOC, DOCX, SCAN, WEBSITE, EPUB, MD and TXT. Features include immediate answers to questions, AI-based analysis, image analysis with GPT-4 integration, and a browser extension to upload PDFs. It also has a Pro plan for heavier usage.

Another good option is Formula Bot, which is geared for converting text into different formats like Excel formulas, SQL queries, VBA scripts and Google Apps Scripts. It can help with data analysis with tools like an Excel Formula Generator, SQL Query Generator and Data Analyzer. It can ingest data from Excel and Google Sheets, so it should be adaptable to your needs.

ChatPDF is geared specifically for PDF files, with AI-based summarization and other interactivity. You can upload hundreds of PDF files in a batch, ask questions and get text output, making it good for researchers, students and professionals who want to get more work done. It's also designed with data protection in mind, with GDPR compliance and regular security audits.

If you're looking for a more elaborate analytics service, check out ThoughtSpot. It's an AI-powered service that lets you ask complex data questions in natural language and get answers. It's designed for self-service analytics, natural language queries, visualization and governance controls, so it's good for business teams and product builders in many industries.