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#How to change default program to open a file windows 10 how to#
#How to change default program to open a file windows 10 windows 10#

If you need to change the extension of all files of a certain type in a folder, you need to open the command prompt. Change the extension of all files in a folder

#How to change default program to open a file windows 10 how to#

We have seen in another article how to do it if a file does not open because the extension is unknown or if it uses the wrong program. In reality, in case of errors, you can always return the extension by putting the real one.

#How to change default program to open a file windows 10 windows 10#

Before saving the change, Windows 10 will ask for confirmation, warning that the file extension has been changed and that the file may no longer be usable. To change the extension, simply press the file with the right mouse button, go to rename and change the part to the right of the point. Note that this option would then be better to turn it off when finished with the changes because leaving it activated will run the risk of inadvertently changing the extension of a file every time you try to rename it).Īt this point, the file names will all be displayed with a dot and extension, for example, test.txt or How2do. In the menu that opens, look for the option File name extensions and activate it. To discover it and make it visible, in Windows 10, open any folder and then press top on the menu View. The extension of a file is found in its name, but it is hidden by default. This type of modification can be useful for converting images to different formats that may be more or less compressed.

The original file will not be modified and in this case, a copy of that file will be created with a different extension.

In the dialog box Save with name, below the box where the name is written, you will find a drop-down menu with a label Save as which shows a list of all file types that can save the program you are using (if you are using Irfanview, it will be able to save an image in all the most common image formats, for example, a JPG can be saved as.

Choose the folder where to save the file and give it a name.

Click on the File menu and press Save with name.

Open a file in its default program (for example a text file.

There are different ways to change the file extension, so let’s see the ones that are simpler and within reach.

The change file extension is, therefore, a delicate operation that requires attention, but which however is important to know how to do to save the files so that they are opened with the right program and more appropriate. If therefore, you change the extension to an image file making it look like a text file, the system will try to open it with the program that opens text files, giving however error and considering it not readable.

It `s important to note that changing the file extension (now we’re going to look at different ways of doing it), the file type doesn’t change. For example, pippo.jpg if it is an image or test.txt if it is a text file. show file extensions, these appear in the name of the file itself, with a dot in front of it. For some types of files, such as videos or images, a preview appears as an icon as well as for executable files, ie those that open programs and games. The files are distinguished from each other only by the icon with which they are represented in folders and on the desktop, an icon that recalls the program that is opened if they are clicked. In Windows 10, by default, the type of file, which is indicated by the so-called “ extension“, is hidden. they are distinct from each other so that the computer can associate the program with them to open them. In each operating system, various types of files, for example, images, documents, videos, etc.