.PNG File Extension
Full form: Portable Network Graphics
What is a .png file?
A lossless raster image format that supports transparency. It was created as a free replacement for GIF and compresses pictures without losing any quality. Files that end with .png belong to the image family of file types, so your computer links them with a suitable program automatically.
Where is .png used?
Logos, screenshots, web graphics, icons and images that need a transparent background. Because the format is so common, almost every modern device and software understands it.
Examples of .png file names
logo.png, screenshot.png
How to open a .png file
You can open it with: Any browser, Photos app, Paint, Photoshop. If it does not open, check that the file is not damaged and that you have downloaded it fully; also confirm that the extension was not renamed by mistake.
Quick tips
Never rename a file just to change its extension, because that does not convert the data inside. Use a proper converter or the Save As / Export option. Keep a backup copy of important image files before editing them.