Something like this may work if the data weren’t too mangled in the original import. The correct column headers for importing using the Bitwarden CSV format are as follows:
folder,favorite,type,name,notes,fields,reprompt,login_uri,login_username,login_password,login_totp
At a minimum, each vault item must have a value in the name column and in the type column (the type column should contain the word login or the word note, depending on whether you want it to get imported as a login item or as a secure note item). The other columns can be blank, although for login items to function properly, the corresponding URL, username, and password should be located in the columns named login_uri, login_username, an login_password, respectively.
Let us know if you need help with any of the other columns.