Opening MDW Files

The MDW file type is primarily associated with Access.

MDW	File extension: MDW
	File type:	database workgroup information

What is an MDW file?

MDW files mostly belong to Access by Microsoft. An MDW file contains workgroup information which is used to manage user access to databases created with the 2000 to 2003 editions of Access. The default MDW file generated by Access is named system.mdw. It is saved as a Jet System Database containing users, passwords, and privileges for each user with access to databases in a given Access installation.

How to open an MDW file

You need a suitable software like Access from Microsoft to open an MDW file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your MDW file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a MDW file directly in the browser:. Just drag the file onto this browser window and drop it.

Online MDW Text Viewer

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MDW file format:

Each file has a definite file format, that is, how the stored data is arranged in the file. A file format is determined by the file extension and signature, so JPEG images have the extension .jpg and the first bytes in the file are ÿØÿ. Frequently, however, one file extension is used by different programs for different file formats, and one file format for different file extensions. So a detailed analysis of a file is vital in order to determine the format and the associated program. Below you will find our evaluation of the MDW files:

The MDW file extension is rarely used and mainly uses a special format. The two most common formats are as follows:

85% of all MDW files are associated with Microsoft Jet DB Workgroup Information. These files are binary files, so they do not contain text, but only cryptic characters. The file size is in the range of 77 KB to 360 KB. The file type is very old but is also used today. Several words can almost always be found in the files, e.g. Jet System DB. The file name System.mdw or Security.mdw is typical for these files. These files are attributed to secured and gate.

The remaining 15% of all MDW files are different files with different signatures. Drag & drop your file here to see the file format and a preview of your MDW file!

Technical Data for MDW File Extension

File classification:

Misc

Related files:

mdb, mwd, ldb, sec, xd, zip, jet, accdb

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: Access.Workgroup.10
EXEFile: %ProgramFiles%\Archivos comunes\Microsoft Shared\Access Runtime\Office10\MSACCESS.EXE /NOSTARTUP %1

ProgramID: Access.Workgroup.10
EXEFile: %ProgramFiles%\Microsoft Office\Office10\MSACCESS.

ProgramID: Access.Workgroup.10
EXEFile: %ProgramFiles%\Microsoft Office\Office10\MSACCESS.EXE /NOSTARTUP %1

ProgramID: Access.Workgroup.10
EXEFile: %ProgramFiles%\OfficeXP\Office10\MSACCESS.EXE /NOSTARTUP %1

ProgramID: Access.Workgroup.11
EXEFile: %ProgramFiles%\Microsoft Office\OFFICE11\MSACCESS.EXE /NOSTARTUP %1

ProgramID: Access.Workgroup.9
EXEFile: %ProgramFiles%\Microsoft Office\Office\MSACCESS.EXE

ProgramID: Access.Workgroup.9
EXEFile: %ProgramFiles%\Microsoft Office\Office\MSACCESS.EXE /NOSTARTUP %1

ProgramID: Access.Workgroup.12
EXEFile: %ProgramFiles%\Microsoft Office 2007\Office12\MSACCESS.EXE /NOSTARTUP

ProgramID: Access.Workgroup.12
EXEFile: %ProgramFiles%\Microsoft Office2007\Office12\MSACCESS.EXE /NOSTARTUP

ProgramID: Access.Workgroup.10
EXEFile: %ProgramFiles%\Microsoft Office\Art\Office10\MSACCESS.EXE /NOSTARTUP

Show all 10 listings To Top

an mdw database workgroup information is a special file format by Microsoft and should only be edited and saved with the appropriate software.

How to solve problems with MDW files

Associate the MDW file extension with the correct application.
Update your software that should actually open database workgroup informations. Because only the current version supports the latest MDW file format. Search, therefore, e.g. on the Microsoft manufacturer website after an available Access update.
To make sure that your MDW file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .MDW file online - secure, fast, and no downloads needed.