Information, tips and instructions

How to Open File Extensions

There are thousands of file extensions used by computers today. Almost every applications has a unique file extension which it uses to store data. Extensions are typically required in Windows, Mac and UNIX operating systems to identify an application which should be used to open the file. If file does not have file extension it is typically some kind of operating system file or it can be corrupted. Operating system won't be able to open a file without extension.

Do not open files with file extensions you don't know. By doing so you may be putting your computer at risk since you don\’t know what could be inside the file and what consequences opening it may have for your computer. This is especially important for files received from external sources like internet, e-mail, etc.

If file is very important and you need to open it no matter what try to find what application could open it by searching the internet for file extension name of the file. This may give you a clue on what application created the file and what could be the best way to open it. Or maybe like in case of files with VBS file extensions it will tell you that it is very dangerous to execute such files and it is much safer to open such files in text editor or do not open them at all.

If file size is not very large and you don't have an application which can open it installed then it may be a good idea to peek inside using text editing application like Microsoft Notepad. To open such file you will need to click right mouse button on it and select “Open with Notepad” from the popup menu. This will open the file in Notepad. If the file was in some kind of textual format you may be able to get all the information you needed. If it was part textual and part binary you may still get some pieces of information from it.