You will get Office 365 Custom Excel add-in plugin
Top Rated
Project details
I deliver tailored Office 365 Excel add-ins that bridge the gap between spreadsheets and your unique business needs. What sets my service apart:
• Niche Expertise: 3+ years focused exclusively on JavaScript/TypeScript and C# based Office Add-ins.
• End-to-End Customization: Solutions built from scratch, not prebuilt templates.
• Seamless Integration: Connect Excel to APIs, databases, or proprietary tools.
• User-Driven Design: Prioritize ease of use without sacrificing functionality.
• SSO. eg: Microsoft/Google.
Before You Order:
Contact me to discuss your requirements. I’ll provide a custom quote and timeline based on your workflow complexity, data sources, and security needs. This ensures a solution that fits your goals and budget.
Why Clients Choose Me:
Proven success in automating 50%+ of manual tasks for SMEs and enterprises. Let’s align your Excel environment with your ambitions.
• Niche Expertise: 3+ years focused exclusively on JavaScript/TypeScript and C# based Office Add-ins.
• End-to-End Customization: Solutions built from scratch, not prebuilt templates.
• Seamless Integration: Connect Excel to APIs, databases, or proprietary tools.
• User-Driven Design: Prioritize ease of use without sacrificing functionality.
• SSO. eg: Microsoft/Google.
Before You Order:
Contact me to discuss your requirements. I’ll provide a custom quote and timeline based on your workflow complexity, data sources, and security needs. This ensures a solution that fits your goals and budget.
Why Clients Choose Me:
Proven success in automating 50%+ of manual tasks for SMEs and enterprises. Let’s align your Excel environment with your ambitions.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$199
|
Standard
$599
|
Advanced
$1,499
|
|---|---|---|---|
| Delivery Time | 5 days | 14 days | 30 days |
Number of Revisions | 1 | 2 | 5 |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$100 - $750
Additional Revision
+$50
27 reviews
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RM
Ruairi M.
Jun 24, 2026
C# and other Coding Jobs
Noman developed a custom Outlook plugin for us that pulls information from our database. He was diligent, professional, patient, and pleasant to work with throughout the project, and we appreciated his commitment to completing the work. Overall, we had a positive experience and are grateful for his efforts.
MN
Mick N.
Jun 23, 2026
Noman - Add in for GMAIL
TF
Trevor F.
Jun 10, 2026
Need an Expert to Finalize and Deploy Excel Add-in
Good communication, did a good job helping me on an Excel add-in in office-js. Fast turn around time.
ML
Melissa L.
Feb 21, 2026
Full-Stack Dev. for Outlook Add-in – Supporting Desktop/Web in MS Business, Enterprise & EDU
MN
Mick N.
Dec 1, 2025
Outlook Office 365 Addin
Noman is one of the best upwork programmers I have worked with in a long time. Noman writes really good and clear code, and there is documentation as well. Easy to work with and my core team were very happy with the quality of what he handed over.
About Noman
Office Add-ins | Outlook, Excel, Word | Office.js/VSTO |AI Integration
100%
Job Success
Sargodha, Pakistan - 7:58 am local time
I help businesses eliminate repetitive tasks, automate workflows, integrate AI directly inside Microsoft Office, and connect their tools with Microsoft Graph, CRMs, and third-party APIs, so teams get more done without changing how they work.
Outlook Add-in Development:
- Event-based add-ins, task pane add-ins, and Outlook plugins with Office.js and VSTO
- AI-powered email summaries, auto-replies, priority tagging, and classification
- One-click actions: forward, CC, log, archive, CRM push
- CRM integration with Salesforce, HubSpot, and Dynamics 365
- Security tools: phishing detection, compliance alerts, internal flagging
- Calendar automation, meeting schedulers, and follow-up workflows
Excel Add-in Development:
- Custom Excel add-ins with live API-driven data sync and dashboard automation
- Custom Excel functions using Office.js
- Automated validation, reporting, and workflow tools
- AI-powered data analysis and decision support inside Excel
- Web and desktop compatible Excel automation
Word Add-in Development:
- Automated document generation, template systems, and content assembly
- Contract, proposal, and report building workflows
- AI proofreading and smart formatting suggestions
- Review, redlining, and approval systems
PowerPoint Add-in Development:
- Data-driven slide and chart automation
- Brand and template enforcement add-ins
- Investor deck and presentation automation tools
SharePoint & Microsoft 365:
- SPFx web parts and extensions
- Microsoft Graph API integrations across the full M365 ecosystem
- OneDrive, Teams, and SharePoint data workflows
Authentication & Security:
- Single Sign-On (SSO) with Azure AD / Entra ID and MSAL
- OAuth 2.0, Auth0, and secure enterprise API integration
- Manifest configuration for both XML and JSON formats
- AppSource-ready and centralized deployment
AI Integration Inside Office:
- RAG agents, vector search, and intelligent document processing
- OpenAI and Claude API integration inside Office add-ins
- Smart email workflows and AI-assisted content generation
Tech Stack:
- Office Tech: Office.js, VSTO, Microsoft Graph API, SPFx, Open XML SDK
- Frontend: React/Angular/VueJS, TypeScript/JavaScript, Fluent UI, MUI
- Backend: Node.js/Express.js, ASP.NET Core, C#, Python/Flask/Django, REST APIs
- Databases: SQL Server/MySQL, MSSQL, MongoDB, PostgreSQL
- Cloud: Azure, AWS, Docker, CI/CD pipelines, Vercel, GitHub, Digital Ocean
- Legacy: VBA to modern Office.js migration, VSTO to Office.js migration
Enterprise-Ready Solutions:
Production-grade systems built with security-first design, compliance standards, audit logging, comprehensive documentation, and thorough testing for enterprise deployment.
How I Deliver Results:
I don't just build features, I solve business problems. Every solution I create reduces manual effort, cuts operational costs, speeds up critical workflows, and scales with your organization.
Whether you're migrating legacy tools like old VSTO solutions to advance Office.js solutions, automating business-critical processes, building custom productivity solutions, or embedding AI into your Microsoft 365 environment, I turn complex requirements into reliable, maintainable systems your team will actually use.
Ready to automate smarter? Let's discuss how I can help transform your Microsoft 365 environment into a productivity powerhouse.
Steps for completing your project
After purchasing the project, send requirements so Noman can start the project.
Delivery time starts when Noman receives requirements from you.
Noman works on your project following the steps below.
Revisions may occur after the delivery date.
The client contacts me and shares their requirements.
The client contacts me and shares their requirements. I review them and provide a quote along with a timeline.