In windows applications you might have felt a difficulty in saving a file with an extension other than one of the extensions available in the Save As Type list. Even if you add the extension with the file name, the file will only be saved in the default extension that appears in the save as list. For eg .if you use the Save As dialog box in Microsoft Word to save your document as mydocument.zip, the file may be saved as mydocument.zip.doc. This is because of the functionality of using long file names, and the ability to save a file with a filename that contains a dot(.). So how to save the file in an extension other than available in the save as list? Here is the tip !