linexcel

Data lineage analysis for Excel workbooks.

Extracts every formula, groups stretched patterns (R1C1 canonicalization), builds a dependency graph (cells, ranges, defined names, VBA), decomposes composite functions with step-by-step evaluation, and optionally documents calculations via AI.

Install

uv add linexcel
# AI documentation (optional)
uv add linexcel[ai]

Quick start

from linexcel import analyze

result = analyze("workbook.xlsx")
result.save_html("out.html")
print(result.stats)

See the Quick start guide for more.

Guide

• Quick start — analyse a workbook, explore it, export it
• Lineage coverage — what is in the graph, and what is not
• HTML export — the standalone offline report
• Workbook context & screenshots — what a reader sees, not only what the file computes
• Choosing an AI provider — local runtime, hosted gateway, or your own callable; none is chosen for you
• AI documentation — provable cards, token accounting, budgets
• Languages — nine, for both the prompt and the interface
• Data handling — what leaves the machine, and when