Convert X AVS to PNM

The X file extension, also known as Application Visualization System X Image, is used for storing high-quality, true-color images with transparency. Developed by Stardent Computer for UNIX systems, it supports 32 bits per pixel, allowing for over 16,7 million colors with an alpha channel for transparency. This format is particularly valuable in scientific visualization and complex data representation. Despite newer formats, its uncompressed nature ensures image integrity without compression-related degradation.

The PNM (Portable Anymap) file extension, developed by Jef Poskanzer in the 1980s, stands for Portable Any Map. It is an uncompressed raster graphics format designed for portable image storage and exchange, encompassing three sub-formats: PBM (Portable Bitmap), PGM (Portable Graymap), and PPM (Portable Pixmap). PNM files store image data in plain text or binary format, ensuring easy usage across different platforms and applications. This format is widely supported by various image editing software and is valued for its simplicity and lossless compression.