Windows bitmap (BMP) format is a bitmap image, typical of the Microsoft Windows operating system. You can save images in 24-bit (16.7 million colors), 8-bit (256 colors) and less. Can these files be compressed without loss of quality: RLE (Run-length encoding). The bitmap files are composed of associated color coded addresses, one for each frame in a pixel array such as a picture of "colored boxes" for small children esquematizaría. Typically, they are characterized by being very inefficient in its use of disk space, but may show a good level of quality. Unlike vector graphics, to be rescaled to a larger size, they lose quality.
In its first versions, the CDR file format was a completely proprietary file format primarily used for vector graphic drawings and developed by Corel Corporation, recognizable by the first two bytes of the file being "WL". Starting with Corel Draw 3, the file format changed to a Resource Interchange File Format (RIFF) envelope, recognizable by the first four bytes of the file being "RIFF", and a "CDR*vrsn" in bytes 9 to 15, with the asterisk "*" being in early versions just a blank, and beginning with Corel Draw 4, the version number of the writing program in hexadecimal ("4" meaning version 4, "D" meaning version 14). The actual data chunk of the RIFF remains a Corel proprietary format.