Icons are graphical representations of computer files, programs and applications. more tips here The program it represents is run when the icon is clicked on. Numbers were used in the file extensions of the smaller files to keep them in the proper sequence. These image files typically use the file extension. First introduced by Google in 2010, WebM is an open-source video format that was developed with the current and future state of the Internet in mind. The video codecs of WebM require very little computer power to compress and unzip the files. The aim of this design is to enable online video streaming on almost any device, such as tablets, desktop, smartphones or devices like smart TV. Microsoft was the main culprit by relying too much on ActiveX controls inside of Internet Explorer.From the Windows 8 Start Screen, select the Windows Explorer app as shown in the image below.There are various instances under which your ZIP file might become inaccessible or WinZip stops working. You will need to install special software to open or create a RAR file. You can use/try it for a few days, but you have to pay for it if you want to use it continuously. Now, you don't get any additional features with this program. Installing Unrar Tool In Ubuntu If you do want to try a service like this, however, then try a quick Google search. Replace the older file extension with the new file extension, then press the Enter key or click in the empty white space to save the changes. Gemma is member of EaseUS team and has been committed to creating valuable content in fields about file recovery, partition management, and data backup etc for many years. She loves to help users solve various types of computer related issues. That's all about how to change the file extension in Windows 10. Since Excel can read this extension, we can use any old file with this extension in the new Excel version and continue to work on it. The XLS extension is the default file extension from Excel version 2.0 to Excel version 2003. Not The Answer You're Looking For? Browse Other Questions Tagged Json Or Ask Your Own Question If you want to open the file, you’ll first need to install a program that can open a file with that extension. Alternatively, you could right-click on the file and select Properties. You’ll see the Type of file in the General tab of file properties. If the DAT file is inside a system folder, you shouldn’t attempt to open it, because it could be in use by one of your apps as a configuration file.