BMP
The bitmap file format is used for bitmap graphics on the Windows platform only. BMP is a Microsoft Windows image format.
Unlike other file formats, which store image data from top to bottom and pixels in red/green/blue order, the BMP format store image data from bottom to top and pixels in blue/green/red order.
BMP images require more storage space. BMP files are too large for Web use.
Bitmap graphics generally stored with a color depth of 1-bit, 4-bit, 8-bit, 16-bit, or 24-bit colors.