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Why we built it

We built an office for AI.
From the engine up.

Since 2025 we’ve been building our own engine for Word, Excel, PowerPoint and PDF files. Here’s why AI needed one, what your AI can do with it, and how we test it against Microsoft Word.

Formats
4
Kinds of change
181
Word fidelity
97/100
The problem

AI can write.
Documents are harder.

A document is more than its words: pages, styles, numbering, tables, comments. Today AI reaches them three ways, and each one leaves something out.

  1. Write the file directly

    The AI writes code that edits the file. It never sees the page, and its edits aren’t marked, so you reread the whole document to find what changed. Broken numbering or layout often goes unnoticed.

  2. Write text, then convert

    The AI writes Markdown or HTML, then converts it into a document. The file is rebuilt from scratch, so its styles, comments and tracked changes are lost, and complex layouts need extra handling.

  3. Click through the app

    The AI navigates menus, waits for the app and checks each action. That extra work makes document editing slow.

What your AI needs is what you get from Word: the real document, a view of the page, and an undo button.

A different approach

Built for how agents work.
Safe for how you work.

Your AI brings the writing and the eye for a page. Mobeera Office brings the features of Word, Excel, PowerPoint and PDF, and shows you every change.

  • It speaks in documents

    Your AI asks for headings, styles, tables, slides, cells and formulas, the way you think about them. It never edits the file’s internals.

  • It sees the page

    Your AI can look at the finished pages and run layout checks for blank pages, stranded headings, split tables and text spilling out of shapes.

  • It proposes, then commits

    Each change is prepared and previewed before it lands, then undone in one step if you don’t like it. If you edited the document in the meantime, your AI’s change waits.

  • You stay in charge

    Your AI works only on files you share with it. In Docs its edits arrive as tracked changes under its name, for you to accept or reject like a colleague’s. Its review findings wait for you too.

One request

From notes to a finished proposal.

You ask once. Your AI does the work in steps you can follow, and stops for you whenever you want to look.

“Turn these notes into a client proposal, check the layout, then send me Word and PDF copies.”
  1. ReadReads your notes and picks a proposal template.
  2. ProposePrepares the proposal: headings, scope, timeline table and budget.
  3. PreviewShows the proposed pages before anything is applied.
  4. CommitApplies the change as one step you can undo.
  5. CheckLooks at every page and fixes a table that split across two.
  6. DeliverSaves an editable Word file and a PDF to the folder you chose.
An example of how a request runs.
Four editors, one app

Docs, Sheets, Slides and PDF.
All in your AI’s hands at once.

Real jobs cross formats. With all four editors in one app and one connection, your AI can take the figures from a workbook, build a deck and a report from them, and hand you the PDF, without switching apps.

Docs

DOCX

64 kinds of change

  • Write and restyle
  • Tables and charts
  • SmartArt and shapes
  • Ink
  • Equations
  • Footnotes and captions
  • Cross-references
  • Table of contents
  • Headers and sections
  • Comments
  • Tracked changes
  • Compare versions
  • Mail merge

Sheets

XLSX

57 kinds of change

  • Cells and formulas
  • Tables
  • Number formats
  • Conditional formatting
  • Data validation
  • Charts and sparklines
  • Filter and sort
  • Remove duplicates
  • Import CSV
  • Goal Seek
  • Trace a formula
  • Protect sheets

Slides

PPTX

41 kinds of change

  • Add and reorder slides
  • Layouts and themes
  • Design packs
  • Text and tables
  • Charts
  • Images and icons
  • SmartArt
  • Animations
  • Transitions
  • Speaker notes

PDF

PDF

19 kinds of change

  • Fill forms
  • Create form fields
  • Highlight and comment
  • Redact for good
  • Insert, delete and rotate pages
  • Reorder pages
  • Bookmarks
  • Page numbers
  • Resize pages
  • Review findings

181 kinds of change in all, each one a feature you know from Word, Excel, PowerPoint or a PDF editor. In every format, your AI can also read the document, find text, look at the pages and save a copy.

How we test

Measured against Word.
Page by page.

Your AI checks its work by looking at the pages. If our pages differ from Word’s, it fixes the wrong things or misses real problems. So we measure.

  1. 1Word draws it

    Microsoft Word for Mac opens each test document, updates its fields and saves a PDF.

  2. 2Our engine draws it

    A test harness loads our staged document engine in a headless browser and exports the same Word-saved file to PDF.

  3. 3We compare pages

    Software measures ink, text, word positions and line breaks on every page.

  4. 4Feature-by-feature review

    Visual review records rate each of the 917 features as a match, close or off.

Word feature fidelity

97/100
  • 870 match
  • 46 close
  • 1 off
  • 0 crashes
Test documents
175
Word features
917

Selected areas, out of 20

  • Text, styles and lists100
  • Headers, footnotes and fields100
  • Equations100
  • Tables and pictures99
  • SmartArt, shapes and effects99
  • Real-world documents99
  • Charts93
  • Page setup92
  • International text87
  • Missing fonts69
Where we’re weakest

A decorative page border renders as a plain line. Some chart labels, 3-D geometry and shading differ, as do transparency effects and curved text. Font substitution and line breaks in some Asian and Thai text also remain sources of differences.

What’s covered

Every chart type in Word’s Insert Chart dialog except maps, 186 of 187 shapes, all 161 SmartArt layouts.

These results measure rendering on this test corpus. They do not measure AI task success or guarantee fidelity after editing, saving and reopening a file.

Run of October 20, 2026, on 175 test documents covering 917 Word features in 20 areas. Excel and PowerPoint results are next. Microsoft Word is a trademark of Microsoft Corporation.

FAQ

Questions about AI

Which AI apps work with Mobeera Office?

ChatGPT, Claude, or any AI app that supports MCP, the open standard for connecting AI apps to other software.

Do my documents leave my Mac?

Mobeera Office edits your documents on your Mac. Your AI app sees what it reads from the files you share with it, and your AI provider’s own privacy terms apply to that.

Can my AI open any file on my Mac?

No. It sees documents you share with it and documents it created. To open or save anything else, macOS asks you to choose the file or folder yourself.

What can’t it do yet?

It can’t yet change the text or pictures already on a PDF page; it annotates, fills, redacts and rearranges PDFs instead. Excel and PowerPoint compatibility tests are next, after Word.

I use WordPilot. What happens to it?

Mobeera Office grows out of WordPilot, our Word editor with on-device AI. On the Mac, WordPilot becomes Mobeera Office.

Do I need AI to use Mobeera Office?

No. Docs, Sheets, Slides and PDF are full editors on their own. Connect an AI when you want help.

Bring your AI to work.
Keep your documents in charge.