As you know extension of a file lets you know which kind of file it is, whether it is image, audio, video, document or something else and you immediately know which program or software is needed to open that file.
However sometimes you may come across many files which may have extension that is completely unknown to you. Also some of files may exist without extension as well. Then how could you know which kind of file it is and which program is needed to open the file?
WolframAlpha – To Identify Programs to Open a File with Unknown Extension
What you usually use to do in such a case. You will do Google search about that extension. But there is also an easy way available. Instead of Google go to WolframAlpha and enter the unknown extension with the dot (like .rtf, .pdf).
The WolframAlpha not only displays the technical details about that extension but it also reveals a list of software programs that you may use to open that file on your computer.
But what if the file doesn’t have any extension?
In this case WolphramAlpha simply fails to give any information about that file. But you can still recognize the format of files using its signature. Since all files have standard and unique signature which is stored in files itself.
TrIDNet is a file identifier which can read these unique signature and determines the format of files even if the extension is missing from the file name.
To download TrIDNet File Identifier :
Just download and unzip the TrIDNet utility and the associated XML definition files in the same directory. Then open the TrIDNet.exe file, press the “Rescan Defs” button to load the file signatures (you only need to do this once) and then drag-drop any unknown files that you want to analyze.
After analysis it gives the list of different file types that match with the file’s signature and you can then use WolframAlpha again to find out different program that can be used to open that file. Don’t forget to rename the file with extension after identification. 🙄 🙄