File Extension EXT

.EXT File

File extension: EXT
File type: E-mail Text Attachment


Notes about the EXT 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 EXT file type is primarily associated with 'E-mail Text Attachment'.

Detailed information for file extension EXT:


Primary association: E-mail Text Attachment

Other applications associated with file type EXT:




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 EXT click this link to expand/hide the additional area.

System Info for File Extension .EXT

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: extfile, FileType: SQL Extended Properties Script file, AppName: Microsoft Visual Studio NET 2002
EXEFile: devenv.exe

ProgramID: extfile.7.1
EXEFile: %ProgramFiles%\Microsoft Visual Studio .NET

ProgramID: extfile.7.1
EXEFile: %ProgramFiles%\Microsoft Visual Studio .NET 2003\Common7\IDE\devenv.exe /dde


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