The BS image format is associated with the Printfox/Pagefox software programs created for the Commodore 64 brand of computers in the 1980s. Commodore 64 was one of the first highly popular models of home computers and Printfox/Pagefox programs were used as desktop publishing applications. Some of their available features included image processing and text formatting. The BS image format is currently considered obsolete and rare, so you won't find many image viewers which can open it.
JPEG JPG PNG GIF TIFF TIF BMP ICO EMF WMF AI PDF EPS PS EPI WEBP WEBPLL JP2 PCX TGA DWG DWF DXF DGN WMZ CGM DRW GBR PCT MIF PLT PCL SVG WPG CIN DCX DIS HRU MTV PRC RAD PIC RLA QRT SGI XBM XPM SWF CAL FITS PSD JXR BPG APNG DDS SVGZ CG4 FLIF