However, you will just receive an error message or open a useless document. When you change a file extension, for instance, after renaming the file “coolpic.jpg” as “coolpic.txt”, Windows will try to open the file with the application that is related to the new file extension. If a file extension in Windows is deleted, Windows won’t know how to deal with the file. Do not change file extensions unless you have enough reasons, because changing file extensions may lead to trouble. If you want to change file extension after seeing the full file name, you should be cautious about it. Read More How to Change File Extension in Windows 10 The following is the method to change file extension in Windows 10. However, sometimes you may need to check your file extensions for certain purposes. All the file extensions are hidden by default. To change file extension Windows 10, you need to know how to show file extensions in Windows 10.
EXE:An executable file format used for programs you can run. PDF:The Portable Document Format, developed by Adobe, is used to maintain the format in distributed documents. HTM/HTML:The HyperText Markup Language format is used for creating web pages online. PNG:Portable Network Graphics - a lossless image file format. XLS/XLSX: – A Microsoft Excel spreadsheet. Now, Word documents are based on the XML format, and thus “X” is added at the end of the extension. DOC is the original extension that is used for Word documents, but Microsoft changed the format when Word 2007 debuted. There are many kinds of file extensions, so only a small part of frequently used file extensions will be listed here. doc is the file extension, which indicates that this file is created with Microsoft Word. For example, if a file is named as awesome.doc. If you have opened documents or checked pictures, you may notice these letters. The file extension is a three-letter code appearing at the end of the file name. In Windows PCs, file extensions are used by operating systems to recognize what applications are related to what file types. How to Change File Extension in Windows 10Ī file extension or known as filename extension is a suffix at the end of a computer file. While in this post, MiniTool will tell you how to change file extension Windows 10. In fact, the code is a file extension tell Windows what kind of file type the file belongs to. When you transfer pictures or documents, you notice that there is a letter code at the end of files.