Cf.rar Link
If a .rar file won't open, it may be corrupted. If the creator added a recovery record during creation (using the -rr switch), you can often fix it using the r (repair) command.
Use the x (extract with full paths) or e (extract to current directory) commands. Example: rar x CF.rar . CF.rar
If you are prompted for a password, the archive was likely created with the -hp or -p switches. Without the password, you cannot view or extract the contents. RAR console version User's Manual - GitHub Gist Example: rar x CF
The cf command allows you to attach a descriptive text string to files inside a RAR archive. These comments are then displayed whenever you use the "view" ( v ) command. rar cf RAR console version User's Manual - GitHub Gist
If you prefer a visual interface over the command line, tools like WinRAR or the open-source PeaZip can handle .rar files, including adding comments and setting advanced compression options like recovery records. Troubleshooting
If you are simply trying to open or manage a file named CF.rar , here are the standard ways to handle it:
To ensure the archive isn't corrupt before opening, use the t command. Example: rar t CF.rar .