Convert RLA to PNM

The RLA file extension stands for Run-Length Encoded, Version A, a bitmap image format developed by Alias/Wavefront. It is primarily used for storing raster graphics with run-length encoding to compress image data efficiently. RLA files are compatible with various image viewing and editing software, such as XnView. This format was popularized in the early days of computer graphics for its ability to handle arbitrary image channels and support efficient storage of large images.

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.