The PNG file format is a short form for Portable Network Graphic. This format offers a zipped lossless extension for the graphic bitmap images. The PNG files are like the .GOF files. They comprise of the bitmaps and also offer lossless compression algorithm, however, they do not consist of the copyright restrictions.
Contrasting the .GIF format, they can just provide for fully opaque pixels or fully transparent, whereas the PNG extension offers 8-bit transparency. As a matter of fact, the PNG file format cannot be animated whereas the .GIF files can. The PNG file format is becoming one of the most ideal image format for graphics over the Internet.
In addition to the problem described above, i.e. the lack of the appropriate application to support the .PNG file, there may be several reasons that cause problems with opening and operation of the data format:
A quite common problem is the lack of application in the appropriate version. Even if you have an application, with the help of which you should open the .PNG file, you may have a problem with it because of its version. Perhaps in previous versions the application has not yet supported the .PNG file, so download the update and check again.
If you have already installed the appropriate application, and it is the correct version, the file may not open correctly, because the operating system does not have information that this program supports the file. So you need to "show" which program the computer should use. To do this:
It also happens that the file you want to open is corrupt and therefore there is no such possibility. In this situation, you should find its different version, or ask a person from whom you got, to send it again.
There may be several reasons why you cannot open the file with .PNG extension. Directly on this website you can find a solution of the most common problem with the .PNG file – that you do not have on your computer the appropriate program to open the file.