![]() Unfortunately, it is possible to change the file extension from a file name, or remove it altogether. ![]() The extension tells you and other programs on your computer what the file format is supposed to be. So, for example, a PNG file should have the extension. These two image formats store the information that makes up a picture in very different ways.įile names have extensions which are supposed to identify the format. For example, an image can be stored as a PNG or as a JPG (as well as many other formats). Some types of media can be found in many different formats. Each format represents a particular way of storing the data that makes up a file. There are many different types of file formats. 5.7 Video Playback Problems - Formats and Codecs.You should know which file types (extensions) to be careful of, and which will usually be just fine. Some computer viruses masquerade as other types of files. In these cases, you’ll have to figure it out on your own.Īnother good reason to understand different file types is so you know what is safe and what isn’t. Usually your computer can simply figure out what program to open a file with, but sometimes your computer won’t know. Sometimes, we don’t think or worry about the file itself - when we’re watching a video or browsing the internet, the web browser just handles all these different files properly and we don’t even think about it.īut sometimes - when you want to download and save a file on your computer, or when someone emails you an attachment - sometimes you need to know what kind of file you are dealing with, and how to open it. ![]() The little sound effect that rings when you get an new email is a file, and the email message itself is a file. Every website you view is a big HTML file, and each individual picture, video, or sound clip on it is another file. Pretty much everything you view, download, or interact with is a file - except some thing which are actually a bunch of files put together. Disclosure: Your support helps keep the site running! We earn a referral fee for some of the services we recommend on this page. ![]()
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