xlsx-parser
Edit Excel files from Python without losing formatting. Openpyxl-compatible API, Rust backend, 3.0-17.3x faster than openpyxl on the committed read/write benchmark. MIT.
XLSX parser for LLMs, RAG, LangChain, LangGraph, CrewAI, Claude, MCP — turns Excel (.xlsx) into citation-ready JSON with formulas, charts, dependency graphs, and token-counted chunks. Open-source Python library (MIT).
Read and edit Excel workbooks with your AI assistant, and know which numbers are calculated, cached or missing.