[How To] Check The Type Of A File Without Extension

by Rohit Khurana on January 3, 2012


Sometimes we may come across files in our computer for which we don’t know which program to choose to open these files. The extension of such files which precede the filename is missing. And as we all know it’s the extension of the file that makes us determine the application to be used to open the files. Sometime we may come across files which may not have any extension at all for such files how will you determine the application to be used to open such kind of files. Therefore today I have got a freeware application named TrIDNet which will help you to determine the application to be used to open a particular file type.


This application will help you to identify the application using which you can open a file which may have an extension or may not have an extension. If the file doesn’t have the extension then the signature of the file can be used to identify the format of that file. Every file type has a unique and standard signature and this data is stored in the file only. There are many applications which can read the signature from the file and determine the format of the file even when there in no extension with the filename. The application is vey simple and easy to use and has a very simple UI.

trid_net 1


This is the first window that will open when you will run the software for the first time after downloading and installing it. The software doesn’t require installation and will run directly from the exe file which you will get after extracting the ZIP file. But for this application you will have to download the application as well as the the XML definition files. After downloading the XML definition files you will have to unzip these files into the same directory where the application is installed. After doing so when you will open the application click on the button which says Rescan Defs to load the file signatures. This process needs to be done only once. Now you can simple select the file using the Browse button or you can also drag and drop the file into the application and press Analyze and it will give you all the file types that matches the file.

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After you know the file type you need to know the application required to open that particular type of file. The first thing that you can do is Google it. But there is a more easier way to it and that is Wolfram Alpha. Go to this link and type the extension that was given to you by TrIDNet go know the application using which you can open this file.

Download TrIDNet

via – Labnol

also read –

Find Type Of A File Without Any File Extensions

Find Programs To Open Unknown File Extensions

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