File Extension MAS

.MAS File

File extension: MAS
File type: Stored Procedures

Notes about the MAS file extension:

To open this file type, a required software must be installed. Without it you only see a Windows message "The following file cannot be opened" (Windows 7) or "How do you want to open this file?" (Windows 10) if you double-click the file. There click on "More apps" and choose a suitable software to view such files on your PC or from email attachments.

The MAS file type is primarily associated with 'Access' by Microsoft Corporation.

Detailed information for file extension MAS:

Primary association: Access
Company: Microsoft Corporation
Program ID: Access.Shortcut.StoredProcedure.1

Other applications associated with file type MAS:

  • Focus Master Data Definition
  • Freelance Graphics (Smartmaster File) by IBMThis was a Lotus product. Lotus was bought out by IBM. The Mime types used with this association are: application/vnd.lotus-freelance, application/x-freelance.
  • Make A Storybook (Storybook) by Kennard ConsultingThe site is an on-line application that lets you create, personalize and print your own storybook. Change the characters' names, what they look like, what happens in the story...everything. The .MAS file contains information about the characters, scenes and storyline for a storybook created using This association is classified as Text. The Mime types used with this association are: text/makeastorybook.
  • Nascar (SimRacing Data) The identifying characters used for this association are - Hex: 43 55 42 45 4D 41 53 34 2E 31 30 , ASCII: CUBEMAS4.10
  • QuickCard File
  • WebFOCUS / FOCUS / Web390 (MASter File Description (MFD)) by Information Builders.MAS is a text file based metadata component, that describes the physical attributes of a database table (column names, column sizes, column format, etc) read via WebFOCUS, FOCUS, and Web390 product engines. This association is classified as Database.
File Identifier - TrID
'Identifying characters' used on are
provided by Marco Pontello from his TrID database

To change file associations press Windows Key + X and then Apps and Features > Default apps > Choose default apps by file type. Invalid file associations could be the result of underlying issues within your Windows PC.

Technical data

To view technical data on file-extension MAS click this link to expand/hide the additional area.

System Info for File Extension .MAS

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and information FILExt collected directly from user systems.

ProgramID: Access.Shortcut.StoredProcedure.1
EXEFile: %ProgramFiles%\Archivos comunes\Microsoft Shared\Access Runtime\Office10\MSACCESS.EXE /NOSTARTUP /SHELLSYSTEM [OpenStoredProcedure %1]

ProgramID: Access.Shortcut.StoredProcedure.1
EXEFile: %ProgramFiles%\Microsoft Office\Office10\MSACCESS.EXE /NOSTARTUP /SHELLSYSTEM [OpenStoredProcedure %1]

ProgramID: Access.Shortcut.StoredProcedure.1
EXEFile: %ProgramFiles%\Microsoft Office\OFFICE11\MSACCESS.EXE /NOSTARTUP /SHELLSYSTEM [OpenStoredProcedure %1]

ProgramID: Access.Shortcut.StoredProcedure.1
EXEFile: %ProgramFiles%\Microsoft Office\Office\MSACCESS.EXE /NOSTARTUP /SHELLSYSTEM [OpenStoredProcedure %1]

ProgramID: Access.Shortcut.StoredProcedure.1
EXEFile: %ProgramFiles%\OfficeXP\Office10\MSACCESS.EXE /NOSTARTUP /SHELLSYSTEM [OpenStoredProcedure %1]

ProgramID: Access.Shortcut.StoredProcedure.1

ProgramID: FLW3Master
EXEFile: c:\lotus\flg\f32main.exe %1

ProgramID: Access.Shortcut.StoredProcedure.1
EXEFile: %ProgramFiles%\Microsoft Office 2007\Office12\MSACCESS.EXE /NOSTARTUP /SHELLSYSTEM [OpenStoredProcedure]

ProgramID: Access.Shortcut.StoredProcedure.1
EXEFile: %ProgramFiles%\Microsoft Office2007\Office12\MSACCESS.EXE /NOSTARTUP /SHELLSYSTEM [OpenStoredProcedure]

ProgramID: FLW3Master
EXEFile: %ProgramFiles%\lotus\flg\f32main.exe

ProgramID: Access.Shortcut.StoredProcedure.1
EXEFile: %ProgramFiles%\Microsoft Office\Art\Office10\MSACCESS.EXE /NOSTARTUP /SHELLSYSTEM [OpenStoredProcedure]

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