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Windows
›
Extensions
›
.CKO
.CKO file extension
This is the basic program to work with .CKO extension
ChessBase Light 2007
ChessBase Opening Key
The program works with the following extensions:
cit
,
ck1
,
ck2
,
cbs
,
ck3
,
cko
,
ckn
,
cba
,
cp1
,
cbb
,
cp2
,
cbc
,
cp3
,
cbe
,
cpn
,
cbf
,
cpo
,
ctb
,
cbh
,
ctg
,
cbm
,
cto
,
cbp
,
pgi
,
cbt
,
pgn
,
cbv
,
cbz
,
cib
and
cbgi
.CKO extension is also supported by the following programs:
ChessBase 9
ChessBase Opening Key
ChessBase
ChessBase Opening Key
ChessBase 13 is a personal, stand-alone chess database.
ChessBase Reader
ChessBase Opening Key
Open chess games database files and play through the games.