You will get Excel Addin, Excel Plugin, Excel Addon development
Top Rated
Project details
I am 9 years of experienced senior software engineer, and I am a Microsoft Outlook, Word, Excel, and PowerPoint add-in, expert. I have a strong grip on Excel Add-ins (COM, VSTO, WEB office 365) and I have developed a lot of add-ins. and also have experience with 3rd parties integrations like APIs or Databases
Programming Languages
HTML & CSS, JavaScript, C#Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$500
|
Standard
$1,000
|
Advanced
$3,000
|
|---|---|---|---|
| Delivery Time | 1 day | 5 days | 10 days |
Number of Revisions | 1 | Unlimited | Unlimited |
Number of Pages Mined/Scraped | 1 | ||
Number of Sources Mined/Scraped | 1 | ||
Install Script | |||
Test Script | |||
Task Automation |
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Martin B.
Jun 30, 2026
Outlook Add-In for Streamline Intake Email Creation
Aamir was quick to respond, efficient in his work and provided exactly what he said he would. It was a great project and we would definitely use Aamir again.
Marty Barrack
Chief Legal Officer
XiFin
Marty Barrack
Chief Legal Officer
XiFin
AK
Andrey K.
Mar 24, 2026
30 minute consultation
AK
Andrey K.
Mar 24, 2026
30 minute consultation
AK
Andrey K.
Mar 15, 2026
30 minute consultation
AV
Anthony V.
Feb 15, 2026
Office Web Addin
We never started the project together so i have no feedback to provide.
About Aamir
Office add-ins, Outlook addin, Word addin, Excel addin, VSTO add-ins
100%
Job Success
Lahore, Pakistan - 6:39 pm local time
I design and build secure, scalable, enterprise-grade Office 365 add-ins using Office.js and VSTO, supporting Web, Windows, and Mac environments. My focus is clean architecture, high performance, and long-term maintainability — not quick hacks.
I’ve helped businesses automate workflows, integrate Microsoft Graph, apply AI inside Office apps, and successfully publish add-ins to the Microsoft AppSource / Add-in Store.
🔹 Office Add-ins Architecture & Development
• Task Pane Add-ins, Custom Ribbon, Custom Functions
• Manifest configuration (XML / JSON)
• Office.js & VSTO development
• Cross-platform compatibility (Web, Windows, Mac)
🔹 Authentication, Security & Performance
• Single Sign-On (SSO) with Microsoft Identity Platform
• Azure AD / Entra ID, OAuth 2.0, Secure API integration
• Performance optimization (fast load times & responsive UI)
🛠️ Backend, DevOps & Tech Stack
• Frontend: React, TypeScript, Next.js
• Office Tech: Office.js, VSTO, Microsoft Graph
• Backend: Node.js, ASP.NET Core, REST & Graph APIs
• AI Integration: OpenAI / GPT-powered features inside Office Add-ins
• Databases: SQL Server, MongoDB, Supabase, efficient schema design & indexing
• DevOps & Cloud: CI/CD pipelines, Docker containers, Azure & AWS deployments, monitoring & scalable infrastructure
Why Clients Choose Me
✔ Deep specialization in Office 365 & Office Add-ins
✔ Enterprise-ready architecture & security
✔ Proven experience with AppSource / Add-in Store publishing
✔ Clear communication & long-term support mindset
I deliver production-ready Microsoft Office solutions from idea to deployment.
Steps for completing your project
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Delivery time starts when Aamir receives requirements from you.
Aamir works on your project following the steps below.
Revisions may occur after the delivery date.
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