EspoCRM had no office editor. Now it has ours.

Neither of the usual office servers ships an EspoCRM connector — we looked. So we wrote one: an extension that makes EspoCRM itself a WOPI host and hands the file to SumDoc, SumSheet or SumSlide. The contract, the budget or the deck attached to a Document opens in the browser, is edited and comes back into the same record — workbooks with their macros. Measured on EspoCRM 10.0.10 and 9.2.4.

An EspoCRM Document with the Open in SumOffice button next to its .xlsm file; Modified shows the time of the last save — The button sits next to the file of a Document. After a save, Modified shows who saved and when.

What the extension does

Where you click	Open in SumOffice next to the file of a Document — `.docx`, `.xlsx`, `.xlsm`, `.xlsb`, `.pptx`.
Where it saves	Ctrl+S writes the file of the same Document. No download, no re-upload; the record shows Modified / Modified by.
Who may do what	Every call runs with the rights of the person who opened the file: reading needs access to the file, saving needs edit access to the Document. Signed access tokens, WOPI proof verification on every call.
Measured	EspoCRM 10.0.10, 22 October 2026: a contract, a budget with formulas, a presentation and a macro workbook — opened, edited, saved back into the same Document. `vbaProject.bin` byte for byte, the form button kept. EspoCRM 9.2.4, 25 September: a macro workbook and a document with five pictures, both byte for byte where untouched.
Price	Per EspoCRM instance, per year: €490 up to 25 users, €990 up to 100 users, from €1,900 above 100 users. A 30-day pilot is free.
What this does not say	That every macro runs in the browser. The VBA project always comes back byte for byte and runs in Excel as before; running macros in the browser editor is a separate feature with its own list of what works.

Setting it up

1. The editors, on your server, behind your TLS address — preferably on the same site as EspoCRM (office.example.com next to crm.example.com), so the editor’s sign-in cookie is not third-party:

git clone https://github.com/SumOfficeApp/sumoffice-docker && cd sumoffice-docker/nextcloud
cp env.example .env
#   PUBLIC_URL=https://office.example.com     the address of the editors
#   NEXTCLOUD_URL=https://crm.example.com     your EspoCRM (the stack is shared with Nextcloud)
#   NEXTCLOUD_HOST=crm.example.com            the same host, no scheme, no port
sh sdelat-proof-klyuch.sh                     # one signing key for all three editors, once
docker compose up -d                          # TLS proxy: https://office.example.com → 127.0.0.1:8093

2. The extension. Download sumoffice-espocrm-1.0.4.zip (all versions). In EspoCRM: Administration → Extensions, upload the ZIP, Install. A newer version installs over the old one.

3. The address. Administration → Integrations → SumOffice: Discovery URL https://office.example.com/hosting/discovery, Save, then Check connection — it lists the file types your stack opens.

Administration, SumOffice: Discovery URL, Verify WOPI proof, CA bundle, and the Check connection result

4. Use it. Open a Document with a Word, Excel or PowerPoint file, press Open in SumOffice, edit, Ctrl+S.

A contract from an EspoCRM Document open in SumDoc

A budget workbook with formulas from an EspoCRM Document open in SumSheet

A presentation from an EspoCRM Document open in SumSlide

A macro workbook with a VBA button open in SumSheet — A macro workbook: edit the data, save, and the VBA project and its button come back unchanged.

Requirements: EspoCRM 9.0 or later, PHP 8.1+. Source and changelog: sumoffice-docker, branch integrations, folder integrations/espocrm. A 30-day pilot is free; production is an annual license per EspoCRM instance (€490 / €990 / from €1,900 a year by users, see licensing). The other systems we measured →

Then

Check my Excel file — what your workbooks rely on, in seconds.
Tell us your EspoCRM version — 9.2 and 10.0 are measured.