Convert spr to pnm Online: spr2pnm
You can use Tom's Editor to easily convert images from
Sprites .SPR to Portable aNy Map .PNM.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
SPR
Sprites is an image format with extension SPR.
PNM
PNM images are uncompressed 24 bit RGB images. Can cannot store Alpha channel. PNM images come in 2 types: binary and text. Especially popular on Linux.