Convert to HRZ Online Tool.
There are two types of .hrz files. The 3D modeling program Poser uses one as a compressed format for hair maps on a 3D figure. The second use of .hrz is for slow-scan television (SSTV) images. In this case, the design is used by radio operators to send 256x240 pixel bitmap images over audio signals. The operator receiving the picture records the audio signal and then opens it with a decoding program. Once the image is saved as a .hrz file, it can be viewed with a program that supports that file type and also converted into other image file types such as .jpg or .png.