BC files are one of two types of files – either Adobe Bridge Cache files or BitComet Partially Downloaded files. The former is a lot more common than the latter – Adobe Bridge Cache files are, unsurprisingly, created by Adobe Bridge and Adobe Creative Cloud. These cache files contain metadata that is cached when a user looks at different images – they are used to summarize info quickly, and without needing to show everything at once.
BitComet files, on the other hand, are created when someone downloads something from the BitTorrent file-sharing program BitComet. When a new download is started, one of these files is created. It’s used as a sort of marker – should the download be interrupted, it can be resumed easily because this file marks how far along the download was.
How can you open BC files?
Both types of file can only really be opened and used with their respective proprietary programs – they are too specific to work with anything else.
What programs work with BC files?
The Adobe Bridge file format unsurprisingly only works with the Adobe Bridge CC software – specifically, versions 2019 and newer. These programs are available for Mac and Windows, respectively.
BitComet is a platform only available on Windows, and it is the only program that will work with this type of file.