Notes about the FB! 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 FB! file type is primarily associated with 'FlashGet' by Beijing Zhitongwuxian Tech, Ltd.. FlashGet is a download manager that uses the MHT (Multi-server Hyper-threading Transportation) technique, supports various protocols and has document management features. FlashGet is freeware. FlashGet used to be called JetCar.