Add the editor without a programmer

A document and spreadsheet editor on your site, in your desktop program and on your phone. Tell Claude what you need and it will do it. No programmer required.

§ 01 · the promise

A Word and Excel editor inside your product — on the site, in the desktop program and on the phone.

You don’t need to be a programmer and you don’t need to wait for anyone. Copy the task, hand it to Claude—and in half an hour look at a working editor with your own document.

The SumDoc editor with an open contract inside a page — This is not a mock-up: the same editor is open right on this site —try it yourself.

Copy the taskit is ready, below
Hand it to Claudeit reads our documentation itself
See the editorwith your document

§ 02 · integration

Choose what you are integrating into

Into a website

Your product lives in the browser. The editor opens right on the page — the user goes nowhere, the file stays with you.

Connect to the MCP server https://docs.sumoffice.com/mcp
and, following the page "Embed into a web application", set up
the document editor on a test page for me.
I am not a programmer: explain step by step in plain words
and ask if you need anything from me.

What happens step by step →

Into a desktop program

An accounting system, an industry platform, an ERP add-on. The editor opens inside your program, and you know about every change.

Connect to the MCP server https://docs.sumoffice.com/mcp
and, following the page "Embed into a desktop application", show me
how to open, change and save a document from my program.
I am not a programmer: make a small example that I can simply
run and see the result.

What happens step by step →

Into a mobile application

Phone and tablet. For viewing there’s a ready-made kit for Android and iOS—the same one used in our store apps. For editing from a phone, your server computes the document and your app shows the screen.

Connect to the MCP server https://docs.sumoffice.com/mcp
and, following the page "Embed into a mobile application", explain
which parts of the mobile path work today and which do not yet,
and build me a small test application so that I can see
the editor on my phone.

What happens step by step →

§ 03 · verification

What you will see

Not a screen recording and not a picture: both programs open right here, in the browser, with no installation. Only you see your edits.

A contract in the SumDoc editor

Headings, lists, a table with deadlines and an amount. Edit a paragraph and see what the editor looks like inside a third-party application.

Open the live editor →

An estimate in the SumSheet spreadsheet

Formulas, shares, two totals. Change a quantity or a price—the totals recalculate on their own.

Open the live spreadsheet →

§ 04 · capabilities

What the editor can do

Short and to the point — what documents are opened for in the first place.

What you need	Documents	Spreadsheets
Open and save without loss	DOCX, as well as ODT, RTF, HTML, plain text, EPUB, FB2	13 formats: XLSX, XLSB, XLSM, ODS, CSV and others
Format	headings, lists, headers and footers, watermarks, tables, pictures and shapes	width and height, merging, themes, conditional formatting
Assemble a document	table of contents, list of figures, bibliography, fields and references	pivot tables, subtotals, filters
Work together	comments, tracked changes, comparing and merging versions	sheet and range protection, review
Compute	—	formulas, recalculation, dependency tracing, Power Query
Publish	printing, PDF, including with embedded fonts	printing, page layout, export
Inspect a third-party file	the macros it contains without running them, how it is protected, readiness for archival PDF/A	macros, protection, compatibility

The full maps — what SumDoc can do with a document and the map next to Excel.

§ 05 · the agent

An agent within the document’s rules

An AI assistant that “knows how to work with Excel” usually clicks around the interface or writes to the file behind the editor’s back. Then nobody knows what exactly changed, and it can’t be undone in one move.

Here the agent takes the same path as a person: the same actions, the same edit history, the same save.

looked
made a plan
showed the exact changes
waited for permission
applied as a whole
verified

A refusal arrives before the file changes, and what was applied is undone in one action—not cell by cell, but all at once. Details—VBA, Power Query and agents.

§ 06 · origins

Thank you, Microsoft

In 1985 Excel showed that complex calculations could become part of everyday work. Word and Excel taught whole industries to work with documents, and business still runs on these formats — including your contracts and estimates.

We do not want to cross out that path. We want the work it made possible to continue where Office itself cannot be: inside someone else’s application, on a server, in an automated process.

Your system used to be embedded into Excel. Now the Excel class is embedded into your system.

§ 07 · why it is fast

Why the assistant gets it done in half an hour

Documents have 41 commands, spreadsheets have 208 operations, of which 206 are accepted by the core of the latest release. Each of these numbers is taken from installed builds, not copied from plans, and is checked twice: on our side against the products’ source code, and when the site is published against lists taken from the delivery itself. If even one diverges, the site isn’t published.

That’s why the assistant gets it done in half an hour: it reads not marketing but a description that matches the program.

Download SumDocBuilds for macOS (Apple Silicon and Intel), Windows and Linux are openly available, with checksums alongside.

Download SumSheetThe same systems and the same checksum verification; the release directory also contains the web host image.

Why your company needs thisWhat changes when the office suite is inside your product rather than next to it.