Just because it's important to you doesn't give you the right to post this question over and over in new forum topics.
It's a chessbase file, so you probably need that program to open it.
cbv. help
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I know I created this beforebut it's important that I know how to download file's that say cbv. so does anyone know what I need to download it please if you tell me where I can get the software to download it.