Convert vzi to pnm Online: vzi2pnm
You can use Tom's Editor to easily convert images from
VertiZontal Interlacing .VZI to Portable aNy Map .PNM.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
VertiZontal Interlacing is an image format with extension VZI.
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.