What is an ADP file?

This article explains what an ADP file is and how to open it on your computer.

What is an ADP file?

A file with the ADP file extension is a Microsoft Access file format that contains project information. This file communicates directly with a Microsoft SQL Server database but does not contain tables or queries like an ACCDB file.

Although less common, other ADP files are audio files used in video games or videos downloaded from video streaming websites.

What is an ADP file? Picture 1

Note : ADP is also a payroll services company but has nothing to do with the file formats discussed on this page. You may also see these letters used in acronyms for unrelated technology terms like active data sheet and automated distribution program.

How to open ADP file

Of course, you can also open ADP files used with Microsoft Access with this program, but only if you're running a version older than Access 2013; they also don't work with SQL Server 2012 or newer.

It is unclear what media player or other tool can open ADP files ripped/copied from video game discs, nor is there a download link for a compatible video player. However, you should try the free VLC Media Player , which is known to support a wide range of media file formats.

Videos in this format are commonly downloaded from browser add-ons such as Video DownloadHelper for Firefox .

Tip : One thing you can try if you have a video file is to rename the file to the .MP4 file extension (e.g. videofile.adp to videofile.mp4). This only works if the file is actually an MP4, but only uses the ADP file extension.

How to convert ADP files

Just like there is no information on how to open ADP audio or video files, there are no tools to convert them to MP3, MP4 or any other audio/video format. Check out some of the best free video converter programs and online services .

Still can't open the file?

A big reason why any file doesn't open the way we expect it to is because we misread the file extension. This is actually easy to do because many file extensions have some of the same letters/numbers.

For example, ADD looks a lot like ADP, but that file extension is used for Dynamic AX developer documentation files, something completely unrelated to MS Access .

ADE and APD are also easily confused with this file extension.