What we do

Office & Google add-ins, built for how your teams work.

From discovery to deployment , Microsoft 365 with Office.js and Google Workspace with Apps Script. Excel, Word, PowerPoint, Outlook, Docs, Sheets, Slides, and Gmail.

Microsoft Office and Google Workspace add-in services

Add-ins by application

Microsoft Office add-ins and Google Workspace add-ons — same delivery quality, built for the apps your teams use every day.

Microsoft Office

Google Workspace

Why add-ins

Why teams invest in Office & Google Workspace add-ins

Your users already live in Excel, Word, PowerPoint, Outlook, Google Docs, Sheets, Slides, and Gmail. Custom add-ins and add-ons meet them there — reducing context switching, copy-paste errors, and shadow IT workarounds.

Nexa AI builds with Office.js and Microsoft Graph for Microsoft 365, and Apps Script for Google Workspace — so solutions pass security review and scale through admin centers or domain-wide install.

  • Microsoft Office: Excel, Word, PowerPoint, Outlook
  • Google Workspace: Docs, Sheets, Slides, Gmail
  • SSO, API scopes, and least-privilege integrations
  • Maintainable TypeScript your team can extend

How we work

From discovery call to production rollout

Every engagement starts with a short discovery session to map users, data sources, and deployment constraints. We then propose fixed-scope packages — not open-ended hourly work without milestones.

Typical delivery includes interactive prototypes for stakeholder buy-in, hardened builds for pilot groups, and documentation for IT and end users.

Delivery

How we ship add-ins

  1. 01

    Discovery

    Workflow workshop, scope, and architecture outline.

  2. 02

    Prototype

    Clickable UI in the target Office or Google app.

  3. 03

    Build

    TypeScript add-in, integrations, and QA.

  4. 04

    Deploy

    Admin guides, pilot rollout, and handoff.

Enterprise Grade

Reliability you can bank on.

We deliver high-performance Microsoft Office solutions that pass rigorous security audits and scale across global organizations.

Figures based on completed portfolio projects and verified Fiverr & Upwork client reviews.

83+

Portfolio Projects

91+

Jobs Completed

4.9/5

Client Rating

6+

Years Experience

Microsoft 365 ready

Centralized deployment, manifest signing, and admin center guidance included.

Our Approach

Enterprise security

SSO, Graph scopes, and data handling reviewed for regulated industries.

Our Approach

Maintainable codebase

TypeScript, documented APIs, and handoff your internal team can extend.

Our Approach

FAQ

Frequently Asked Questions

Everything you need to know about our services, process, and solutions.

We target Microsoft 365 channels and test desktop and web clients per project. Legacy perpetual Office is scoped separately if required.
Yes. We routinely work under MSAs, security questionnaires, and phased SOWs for global teams.
We offer retainers for Office channel updates, bug fixes, and feature sprints — see our Scale package or book a consultation.

Ready to build your add-in?

Book a 30-minute call. We'll map your Office APIs, timeline, and fixed-price options.

Book a consultation