how to show file extensions on windows 10/8.1/8/7

When we need to identify file type that’s time file extension is very essential for windows user. If you use windows regularly, then you can easily identify the file type. We can see different file types have different extensions. Microsoft office files have .doc, .dot, .docx, .docm, .xls, .xlsm, .ppt, .pot, .pptx etc. Audio files […]