Notes about the BC! file extension:
To open this file type, a required software must be installed. Without it you only see a Windows message "The following file cannot be opened
" (Windows 7) or "How do you want to open this file?
" (Windows 10) if you double-click the file. There click on "More apps"
and choose a suitable software to view such files on your PC or from email attachments.
The BC! file type is primarily associated with 'BitComet' by BitComet.com. BitComet is a p2p file-sharing program fully compatible with Bittorrent. The .BC! extension is an incomplete download and you should not try to open this file. This also applies to BitLord. When the download is complete the .BC! extension should change to whatever the correct file extension should be for the complete download.