File Extensions? Do I have to learn this? Or should I just open my files with any program. Computer Geeks


What Are File Extensions?


File extensions basically let you know what type of information is contained in a particular file. For example a note pad file has the .txt extension. This means it is a text file.

 

Here are some other examples of file extensions.

 

.exe (An executable file, usually the file that starts a program.)

.pdf (Portable Document Format, is a file format created by Adobe Systems. Most office documents come in .pdf file format.)

 

.zip/.rar (These could be any file but they have been compressed and packed away to a smaller size. When unpacked or unzipped it will become what it was originally.)

.wav/ .mp3 (Music files)

 

.jpg/.gif/.bmp (Picture file formats)

To show file extensions:

 

1. Open any folder on your computer.

2. Choose “Tools” – “Folder Options”.

3. Click the “View” tab.

4. Uncheck “Hide extensions for known file types”.

5. Click “OK” to close the dialog box.

 

 

 

 


 

 


 


 
 
 

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