FileInfo
extension

ADD File - What is an .add file and how do I open it?

Learn about .ADD files and view a list of programs that open them.

Languages

EN

Overview

What is an ADD file? An ADD file is a developer documentation file used by Microsoft Dynamics AX, an enterprise resource planning ( ERP ) application. It contains reference material and instructions that help developers and technical consultants work with and extend the functionality of Dynamics AX. Together with related files, such as .ADI index files, ADD files form part of the overall developer help system packaged with Dynamics AX.

More Information Developers, system integrators, and consultants primarily use ADD files when customizing Dynamics AX to meet specific business needs. The documentation stored in ADD files explains how to use the system's development environment, integrate it with other software, and build or modify business logic within Dynamics AX. NOTE: ADD files are organized by language, which Dynamics AX references to deliver the documentation in different localized versions.

Popularity3.2/5

6 votes

Quick AppUsed by
VerifiedVerified by FileInfo.com The FileInfo.com team has independently researched the Dynamics AX Developer Documentation file format and Windows apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified. If you would like to suggest any additions or updates to this page, please let us know .

Document Icon

Breadcrumbs

DeveloperMicrosoft
Popularity3.2 | 6 Votes

Previous / Next

‹ .ADCP.ADDIN ›

In-Depth

.ADD File Extension

Dynamics AX Developer Documentation File

DeveloperMicrosoft
Popularity
3.2  |  6 Votes
 

What is an ADD file?

An ADD file is a developer documentation file used by Microsoft Dynamics AX, an enterprise resource planning ( ERP ) application. It contains reference material and instructions that help developers and technical consultants work with and extend the functionality of Dynamics AX. Together with related files, such as .ADI index files, ADD files form part of the overall developer help system packaged with Dynamics AX.

More Information

Developers, system integrators, and consultants primarily use ADD files when customizing Dynamics AX to meet specific business needs. The documentation stored in ADD files explains how to use the system's development environment, integrate it with other software, and build or modify business logic within Dynamics AX.

NOTE: ADD files are organized by language, which Dynamics AX references to deliver the documentation in different localized versions.

How to open an ADD file

ADD files are not meant to be opened. Instead, they are accessed through the Microsoft Dynamics AX development tools or help system, which provides a searchable and structured interface to the documentation they contain.

Open over 400 file formats with File Viewer Plus . Free Download

Programs that open or reference ADD files

Sort

Pricing

Program Name

Platform

Reset

X

Windows

Microsoft Dynamics AX

—

Discontinued

Paid

Category: Misc Files

Updated: August 20, 2025

FAQ

What is an ADD file?↓
An ADD file is a developer documentation file used by Microsoft Dynamics AX, an enterprise resource planning (ERP) application. It contains reference material and instructions that help developers and technical consultants work with and extend the functionality of Dynamics AX. Together with related files, such as .ADI index files, ADD files form part of the overall developer help system packaged with Dynamics AX.
How do I open an .add file?↓
ADD files are not meant to be opened. Instead, they are accessed through the Microsoft Dynamics AX development tools or help system, which provides a searchable and structured interface to the documentation they contain.

Related