Convert bmp to srs Online: bmp2srs
You can use Tom's Editor to easily convert images from
Microsoft Windows bitmap .BMP to Screen 12 .SRS.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
BMP
Format created by Microsoft for their Windows and OS/2 operating systems. Images can be compressed or not.
SRS
Screen 12 is an image format with extension SRS.