This is quite common problem that you see a file with some unknown extension and you donâ€™t even know which program to use to open it.
Here i have given twoÂ different ways through which you can first find out which program is correct to open a unknown file extension
Use a web service to find the appropriate program
1. Double click on the file and Select â€œUse the Web Service to find the appropriate programâ€.This method will call a web service by Microsoft which lets you find out which program is suitable to open the file with unknown extension.
You can also use this service in another way to check which program to use for a particular file extension
In the above link just change the extension txt with any unknown file extension in the above link to know which program to use to open a file with that unknown extension
Method 2: Use the web-site www.filext.com
1. Open the site www.filext.com in your browser.
2. Enter the extension of unknown file type, here in the image below by red arrow
3. Press Submit Query button, you will see a new page containing all the information about that file extension.
FilExt will display the complete description about that file extension and the program required to open that unknown file extension.
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