Powerful Excel Add-ins Development

Build custom add-ins for excel to add specific functionality and features to any MS Excel worksheet instantly.

Custom Excel Add-ins Development

We create Excel Add-ins that are efficient to serve those who need Excel to automate their operations. In short; we want to deliver add-ins that can serve as a helping hand to achieve your business goals.


VSTO stands for Visual Studio Tools for Office. VSTO provides a much more advanced and powerful editor as compared to other tools. By leveraging the power of VSTO our developers can code your custom add-ins in C#, Visual Basic, JavaScript and even Python. VSTO allows the developers to use Windows Presentation Foundation and Winforms to develop visually pleasing add-ins. The best part about VSTO is; the end-user can extend Excel applications to the Internet.


The best part about EXCEL DNA is; the entire add-in can be packed into one .xll file. Hence there will be no need for registration and installation. Excel DNA is popular for its ability to integrate .NET into Microsoft Excel. It provides custom ribbon interfaces and best-performing user-defined functions. Also; Excel DNA supports both types of component object models – Interop and XLL interfaces. The developers always get a choice to use it with the visual studio or without it.


The Excel add-in developed by Office JS is always highly portable. That means the end-user can use the add-in on Tablets, Mobile Phones, PCs, Windows, and iOS. Along with that JavaScript provides easy online service hosting. The combination of JS and CSS results in a highly interactive UI for the add-in. Office JS provides amazing visualization elements like charts, Cliparts, and Maps to add in the Excel SpreadSheet. The user can easily get and add data from third-party apps and external sources.


VBA stands for Visual Basic of Applications. This event-driven programming language is implemented by Microsoft for the development of Office add-ins. The best part of using VBA is; the developer can write instructions in the English language to create any type of Add-in. VBA allows developers to leverage the features of Microsoft Excel and develop one of a kind Add-in. As a result, VBA add-ins can develop user-defined functions, automation processes and even Windows API.

Why DINEM for MS Office Add-ins Development?

Proficient Team

Proficiency is the key power of DINEM. Our developers are well experienced and skilled in their field. We have a dedicated team of developers for all the technologies and frameworks required to build your project.

Latest Tools and Technologies

We encourage our team members to spend a few hours learning the latest updates in their respective field. We want to deliver the best results to our clients and hence our team is always updated with the trends.

On-time Delivery

We understand and respect the value of time. The entire DINEM team works hard to keep up with the schedule and deliver the project on time or before time (in some cases).

GDPR compliance

Data protection is always our priority and hence our every development is GDPR compliant. The data stored in our product will always be end-to-end encrypted and saved only after the consent.

Customer-Focused Approach

We work hard to satisfy the requirements and expectations of our customers. Our entire development approach is customer-focused, you will be in the loop throughout the development process.

Excellent Support

DINEM is popular for its excellent customer support. Our customer support team will always be available to assist you with any query or assistance. Even after the delivery of the project, we will be there to help you with the integration.

Get in Touch:

Need Custom Excel Add-ins Development Assistance? Let’s discuss your project.

Share your requirements and we will be happy to assist you.