Publisher's Paintbrush Bitmap Graphic
You can view Publisher’s Paintbrush Bitmap Graphic (.pcx) files.
The .pcx file format is a bitmap format developed by PC Paintbrush, and is used to store bitmap (raster) graphics on PCs. PCX can store mapped and unmapped image, supports 4-bit, 8-bit, and 24-bit graphics and can contain uncompressed or RLE compressed image data.