Best AI Agent Skills for Spreadsheet & Excel AI Tools in 2026

A Model Context Protocol server for Excel file manipulation

A Model Context Protocol (MCP) server that reads and writes MS Excel data

This MCP server integrates with your Google Drive and Google Sheets, to enable creating and modifying spreadsheets.

Office document creation and editing skills for Claude Code - PPTX, DOCX, XLSX, and PDF workflows with automation support

A Claude Skill that automatically analyzes uploaded CSV files — generating summary statistics, detecting missing data, and creating quick visualizations using Python and pandas.

Automate real Microsoft Excel with AI via MCP Server or CLI — Power Query, DAX, VBA, PivotTables, charts, and 326 operations.

An Excel AI agent that uses MCP tools to let LLMs read, edit, and automate Excel spreadsheets.

Model Context Protocol (MCP) Server for reading from Google Drive and editing Google Sheets

Token-efficient MCP server for tabular data retrieval. Index CSV/Excel files, query rows, aggregate — 99%+ token savings vs raw file reads.

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).

Free, open-source AI Office suite: Docs, Sheets, Slides, PDF, Markdown and HTML editors with a built-in AI agent, plus a `genoffice` CLI and agent skill so Claude Code, Codex and Cursor can create and edit real .docx/.xlsx/.pptx files locally. Bring your own key. macOS, Windows & Linux.

The spreadsheet framework built for agents — write the model as React, export a live .xlsx. The third medium, after open-slide and open-doc.

Univer Skill enables AI tools to work directly with spreadsheets, Excel workbooks, and CSV files. Powered by Univer CLI, it brings Git-style diffs, reviews, approvals, and rollbacks to spreadsheet workflows — making human-AI collaboration structured, reviewable, and safe.

BrandDocs is a set of agent skills that learn your existing Word, PowerPoint and Excel templates and generate new on-brand documents from them. Unlike generic AI document generators, it preserves brand, structure, styles and formulas by construction. Built for Claude Code, Codex and compatible AI agents.

OfficeCLI is the first and best Office suite purpose-built for AI agents to read, edit, and automate Word, Excel, and PowerPoint files. Free, open-source, single binary, no Office installation required.

Python CLI tool to run queries against sqltatabases and convert the results to json, csv, excel in the command line or python program. Easy to use for Humans, automations, LLMS/Agents

```bash
pip install sql2json
```

Composable Google Sheets CLI for humans and agents. Read, write, update cells by key—with Agent Skills for Claude Code and OpenAI Codex.

Python Streamlit web app allowing users to interact with their data from a CSV or XLSX file, utilizing OpenAI API and LangChain. It imports necessary libraries, handles API key loading, displays a user-friendly interface for file upload and data preview, creates a Pandas DF agent with OpenAI, and executes user queries.

Edit DOCX/XLSX/PPTX in your browser — client-side, no server, works offline (OnlyOffice + WebAssembly)

Professional financial modeling toolkit for Claude Code with auto-invoked Skills. Build DCF models, LBO analysis, variance reports, and pivot tables using natural language.

The fastest business intelligence tool for humans and agents.

A collection of enhancements, plugins, and prompts for Open WebUI, developed and curated for personal use to extend functionality and improve experience.

An Agent Skill and Dify plugin to transform Markdown to files of DOCX, PPTX, XLSX, PNG, PDF, HTML, MD, CSV, JSON, XML.

Claude Code and Codex SKILLs for PDF, Excel, Word, and PowerPoint manipulation — extraction, forms, formulas, tracked changes, adapted from Anthropic skills.

```bash
git clone https://github.com/appautomaton/document-SKILLs.git ~/skills/documents
cd ~/skills/documents

# Claude Code
for s in docx pdf pptx xlsx; do
  ln -s "$(pwd)/$s" ~/.claude/skills/$s
done

# Codex
for s in docx pdf pptx xlsx; do
  ln -s "$(pwd)/$s" ~/.codex/skills/$s
done
```

Conversion from Excel to structured JSON (tables, shapes, charts) for LLM/RAG pipelines, and autonomous Excel reading/writing by AI agents via CLI and MCP integration.