Convert max to pnm Online: max2pnm
You can use Tom's Editor to easily convert images from
XL-Paint MAX .MAX to Portable aNy Map .PNM.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
XL-Paint MAX is an image format with extension MAX.
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.