Need VSTO developer for tasks

@Cmonosoft

Hi there I can help you with VSTO development for dedicated and ongoing projects, whether it involves building new Office add ins or maintaining and improving existing ones. I have experience working with Microsoft Office automation using VSTO, including Excel, Word, and Outlook integrations. I can develop custom features such as data processing tools, automated reporting, UI ribbons, and seamless integration with external systems or APIs. If you already have existing projects, I can quickly understand the codebase and continue development efficiently. For new requirements, I can design solutions that align with your workflow and scale as needed. Let's connect to discuss and start work! Thanks Saurabh

@mdaxini

With over a decade of experience in mobile and web app development, specifically in platforms like iOS, Android, and Flutter, I am confident in my ability to handle any VSTO task you may have. My company, MDTechnoSoft LLP, has a proven track record of delivering high-quality, scalable solutions on time without compromising on code quality. I lead a talented team of developers who work under my direct supervision to ensure we maintain the highest standards while delivering faster solutions. My key skills include RESTful APIs & GraphQL, Firebase, Push Notifications, In-App Purchases, Deep Linking among others which perfectly line up with your project requirements. Not just that we also have hands-on expertise in .NET and C# programming languages. In addition to providing technical expertise, I believe in transparent communication and long-term partnerships. I'll keep you updated at every stage of the project and also provide post-launch support to ensure your solution is ready for scale and growth. You won't just get an efficient developer but also a reliable partner-centric approach that focuses on turning ideas into success stories. So let's connect and discuss how we can collaborate to elevate your VSTO tasks.

@uniqedeveloper

Hi, I totally understand your requirement for a dedicated VSTO developer—especially where stability, Office interop performance, and maintainability are critical. I’ve previously worked on a similar case where I built a VSTO-based Excel and Outlook add-in to automate reporting workflows and email triggers. The project involved deep COM interop handling, ribbon customization, and resolving memory leaks caused by improper object release. The end result reduced manual effort by ~40% and significantly improved execution reliability. I focus on clean architecture, safe COM handling, and predictable deployment across environments. A few quick questions: 1. Which Office applications are involved (Excel, Outlook, Word, etc.)? 2. Do you have an existing add-in to enhance or is this from scratch? 3. What deployment method are you currently using (ClickOnce, MSI, etc.)? Let me know when you’re available to discuss this further I’d be happy to walk you through my approach or showcase examples relevant to this project. Looking forward to hearing from you! Best regards, Mulayam

@alluankit01

Hi, I can help with this. VSTO work usually needs someone who is comfortable not just with C#/.NET, but with the real day-to-day issues around Office add-ins: Excel/Word integration, ribbon actions, event handling, deployment, and keeping the add-in stable inside an existing workflow. I’m comfortable with **VSTO + C# + .NET + Visual Studio**, and I can support dedicated project work where the goal is clean implementation, reliable debugging, and maintainable code rather than quick patches that break later. What matters most in VSTO projects is understanding how the add-in behaves inside Office, because a lot of problems come from workflow/event timing rather than pure C# logic. That is exactly the type of work I can step into quickly. If you want, send me the first task or the current add-in scope, and I’ll tell you the best way to approach it right away. Best regards. Ankit.

@artur1992123

Hey! I see you need a VSTO developer for Office automation. The main challenge here isn't just knowing. NET, it's understanding COM interop - Office object models, and deployment quirks that break silently in production. I've built 14 WinUI 3/. NET desktop apps in the last 2 years, including tools that integrate deeply with Windows APIs and system-level automation. VSTO shares the same. NET/C# foundation, and I'm comfortable with Visual Studio, COM, and Office extensibility patterns. Since I'm building my Freelancer profile and need quality reviews, I can take this at ₹37 500 INR (symbolic rate) and deliver fast, production-ready work. You get experienced. NET development at a competitive price, I get a strong review to grow here. Check my portfolio for. NET desktop work: https://www.freelancer.com/portfolio-items/11324129 https://www.freelancer.com/portfolio-items/11324128 Ready to start immediately. Let's build something solid.

@ttobio69

Dear Client, I have read your requirements carefully, and I understand you need an experienced VSTO developer for dedicated .NET-based projects. I have worked on several similar projects involving VSTO add-ins, C#, Office automation, Excel/Outlook integrations, debugging, and custom desktop tools built in Visual Studio. The best solution is to handle your tasks with clean, maintainable VSTO code and a strong focus on stability, performance, and compatibility with your existing workflow. I can support feature development, bug fixing, UI improvements, Office integration logic, and ongoing task-based development in a reliable and structured way. I bring rich experience with .NET, C#, WPF, Visual Studio, and Microsoft Office add-in development, and I am comfortable working on dedicated projects with clear communication and fast turnaround. I can complete this project within your required timeline, and I would be happy to discuss the cost in detail based on the exact scope. Best regards, Oluwatobi Okedairo

@samm359

Hello I love MS products and like to do development project using C# and .NET Of course, I have good experiences with Visual Studio programming on my course and self projects. You can do teting if you are interesting. Looking forward to first chance for me. Thanks, Sam

@khrystynad4

Hi, I have solid experience building and maintaining VSTO-based Office add-ins for Excel/Word, including UI customization, event handling, and integration with external systems. What I can help with: • Developing and maintaining VSTO add-ins (C# / .NET) • Custom ribbons, task panes, and Office UI extensions • Automation workflows (Excel processing, document generation, Outlook integration) • Debugging COM/VSTO issues (load failures, deployment, version conflicts) • Integration with APIs, databases, and enterprise systems How I work: • Deliver stable, production-ready add-ins (not quick hacks) • Strong focus on debugging and compatibility across Office versions • Clear communication and reliable turnaround • Available for ongoing / long-term collaboration Experience: I’ve worked on Office automation systems involving data processing, UI extensions, and external integrations, where reliability and maintainability were critical. I’m ready to support your projects consistently. Best regards, Khrystyna

@nicolasr367

Hi! I'm a .NET/C# developer with 4 years of hands-on experience. I've built VSTO add-ins and worked extensively with Visual Studio, WPF, and the Office interop libraries. I can develop custom Office plugins, automate workflows in Excel/Word/Outlook, and integrate with external APIs. Ready to start immediately. Let's discuss the specific tasks you need done!