Soft Maximum - best free downloads
cpt

PictView32 Console version
... 86I,89I,92I, AWD,BMI, BMP,BW,CAL, CDR,CDT,CLP, CMX,CPT,CUR, CUT,DCX,DIB, FLC,FLI,GIF, HAM,ICN,ICO, IFF,IMG, JFF,JIF,JMX, ...

ST Thumbnails Explorer
... ART, WEB), Deneba Canvas (CNV, TPL), Corel PhotoPaint (CPT), Corel R.A.V.E. (CLK), CorelMOVE (CMV) and others (WMF, EMF, TIF, EPS, ...

Icon Converter Plus
... Windows BMP, DIB, RLE, GIF, JPG, JPE, JPEG, TIF, TIFF, CPT, WMF, EMF, PNG, PCX, JP2, JPC, J2K, TGA, RAS, ICO, CUR, ANI image formats ...

1