filename extension - a sequence of characters, which allows you to specify the file format.Windows file extension of the file name separated dot.For example, the full name of a text document will look filename.doc, and music track - filename.mp3.By definition file extensions can be tied program "by default".If once specified in the file properties, the file with this extension should open a particular program, the operating system will open the specified program, all files with this extension.
For example, you want all the music files in mp3 open certain player.In the list of files, locate any file with the extension mp3 and click the right mouse button.In the context menu select "Properties".At the top of the dialog that appears, you will have two lines: "type" (where you can once again see the file extension) and "
What most common file extensions in Windows? For example, exe - it executables , for example, software installers, rar and zip - archives.Electronic books differ extension pdf, djv or fb2. Audio files usually have the extension mp3, wav and ogg.Files lossless-audio (sound files, lossless) can have an extension flac, ape and wav. Video files different extensions avi, mpeg, mp4, mkv, flv, etc.. Raster can learn to expand jpg (jpeg, jpe), bmp, gif, png, tiff, and others. Expansion vector images depends program in which they are made - for example, cdr for CorelDraw.
Generally, file extensions in Windows often depend on the particular application , and third-party application to open files with this extension can be difficult or even impossible.For example, the extension psd files are created in the graphic editor Adobe Photoshop (however, this program allows you to save the ready file in almost any graphic format).Text files created in Microsoft Word, you can learn to expand the doc (docx for new versions of the program), and a text editor works with Open Office format odt.Also text files may have permission txt or rtf.
How do you know, what types of files running your operating system? Go to Windows Explorer, in the Tools drop-down menu select Folder in the dialog box, click the File Types tab .This tab will be a table in two columns - the file extension in Windows and the corresponding type.
How to change the file extension?
Imagine you swing from the Internet Archive, but it does somehow kept his resolution htm (resolution of the Web page).Naturally, unzip this archive you will not succeed.You need to change the file extension on the right.However, Windows can not display the file extension, including for security reasons, so that the user does not inadvertently renamed the file properly.
To change the file extension, you need to turn on the file extensions in Windows. To do this, go to Windows Explorer Windows (double-click on the icon "My Computer" on the desktop or the keyboard shortcut Win + E).Go to the folder where the file extension you want to change.The menu of service select Folder Options.In Windows 7 menu may not be;In this case, click the Explorer key Alt, and it will appear.Menu item equivalent Folder Options in Windows 7 Folder Options nazvaetsja .
In the resulting dialog box, click the View tab .In Additional parameters must be a string: "Hide extensions for known file types."Remove standing checkbox next to it and do not forget to click the OK button!Now the file extensions in Windows will be displayed, and you can change the file extension.It is also often the default file extensions are displayed in many file managers, for example, Total Commander.We remind you that you can rename the file by pressing F2 or by selecting the file in the context menu (it is called right-click), select "Rename".
However, this technique not allow you to change the format of the media file. can not make file ape mp3 file or a file mkv file avi, simply by changing the file extension.To change the format of audio and video files need special programs that perform conversion of media format to another.Also, be aware that if you incorrectly change the file extension, you can not open it.We can say that the file extensions In Windows - not a toy!