What is an extension name?
.mdb is not an extension file name of computer. Every file which make by any programme in any type OS (operating system) has an extension name to define about self. A file means “An object on a Computer which stores data, information and setting” is called the file. Extension name is indicating that which type of file.
Extension name has mostly three word which show in the end of the file name as like “guestlist.txt,” “.TXT” is the extension name and its indicate it is the text document file. Document file extension name is “.DOC”. Photoshop document extension file name is “.PSD”. Some extension name is lengthy from common file some like as “.DESKTHEMEPACK” this extension of window 8 theme.
View the file extension name in any (OS) Operating System, firstly chose the file then right click on the file select the properties, after open the properties dialog box click on general menu on the top bottom the menu show the file extension name. If you want your computer or (OS) Operating System always show the file extension name then open the control panel click on the folder option, after open the folder option dialog box click on the view menu and Uncheck Hide extensions for known file type.