Tabulensis

Diff spreadsheets like you diff code.

Tabulensis compares Excel and Power BI files locally, then reports structural, formula, and query changes in a clean, structured format.

Today-ready install

Use the prebuilt binaries or install from source with Rust 1.85+.

cargo install --locked --path cli

Workbook aware

Captures sheet structure, named ranges, charts, and VBA modules.

Power Query diff

Highlights M-query edits so you can review semantic changes fast.

Streaming output

Use JSONL output for large workbooks and pipeline-friendly diffing.

Designed for teams moving fast

Use Tabulensis in CI, in a pre-commit hook, or in your release checklist. Reports stay deterministic and leave the original files untouched.