A tour of Milleleaf

Make it once.
Use it in every app.

One table or chart, in the workbook, report, deck and PDF. Each keeps its own style. When the numbers change, every use follows.

The milleleaf.com home page: the workbook is the source, the report and deck use it in their own style. — milleleaf.com, captured from the live site.

Setup

Reports, data and slides that never quite agree

Long reports, built from dataFigures and tables come from workbooks, and the report has to match them.

Meetings every weekProgress meetings and workgroup discussions, each needing slides with the latest numbers.

Everyone edits their own copyColleagues and managers send reports, data and decks for review, and adjust the templates to fit their view.

Everyone uses their own appsMicrosoft Office, LibreOffice, the ArtCraft apps, and AI tools that hand back HTML decks.

One figure gets updated, and three other places still show the old one.

One edit, every use

A row added in the workbook. The deck followed.

The same board-pack page, made by Milleleaf from one source. After an edit in the spreadsheet (Perth added, Singapore restated), the table, the chart and the total all changed, in the deck's own style. The report and the PDF followed too.

Drag the handle, or use the arrow keys.

Before: three regions, total revenue $1,250,500.

After: four regions including Perth, group revenue $1,378,750.

AfterBefore

In the browser

Watch one change travel

The live demo at milleleaf.com/flow. Everything runs in the page; files aren't uploaded.

The flow demo, ready: start with a workbook.

After the edited workbook came back: 6 changed places, 0 conflicts.

1. Start with a workbookMade in Excel, Calc or GridCraft. Pick the sheet, the range and the chart.

2. One source, two documentsThe report and the deck are made from it, each in its own style. Then an edited workbook comes back.

3. See exactly what changed"Hong Kong · Revenue: 541,500 → 550,000", in the report table, the report chart, the slide table and the slide chart. Typing over a linked number becomes a conflict instead.

4. Same on a phoneThe demo works at phone width, and every download is a real Office file.

Your turn

Try it with your own workbook

Open the sample, or choose your own XLSX or ODS file. Make the report and deck, change a cell, download all three.

Open the flow demo →Compare two versions →

Why not the usual ways?

Each one stops somewhere

Copy and paste gives a copy. When the source changes, the copy stays as it was, and edits in it don't flow back.
Paste Link and linked objects refresh within one suite, one way. File links can break when files move.
Import and export convert once. No continuing link, no route back for edits.
Plugins work well inside one app, but need installing and often a paid licence per seat.

Milleleaf works on the files themselves, through places the file standards allow. Nothing is installed into any app.

The How it works page on milleleaf.com. — The full comparison, with sources: milleleaf.com/how-it-works

Recording of milleleaf.com/demo: two versions of a workbook, compared in the browser.

Follow the file

Wherever it was edited, see what happened

Drop two versions of a DOCX, XLSX or PPTX. The comparison lists every change in plain words: a renamed sheet, an added row, a restated value, with before and after side by side.

What it is today

Built, checked, and honest about the rest

BuiltLayers with provenance, PDF board packs, history, blame and checkpoints. Optional signatures and time-stamps.

CheckedRound trips through Word, Excel and PowerPoint 16, LibreOffice and the ArtCraft writers, on example projects and real files.

Not yetOne-click refresh inside the apps, review approvals, and a team sharing one project. It's early: not production-ready.

Every claim on the site stops at the check behind it. Status and known limits · How we make claims

Open source (MIT or Apache-2.0), written in Rust. The demos run in your browser; the command-line tool works locally.

milleleaf.com →Code on GitHub →

Questions or feedback: hello@milleleaf.com

Page 1 of the board pack: the Q3 report with the revenue table. — Page 1 of a board pack Milleleaf made from one source.

Make it once.Use it in every app.