[Dovecot] how to display dovecot.index.cache

[ldaamandy]

hello dovecot@dovecot.org:
 
    I want to see the contents of dovecot.index.cache .  Is there any command 
can make it become visible character displayed ?
   the command idxview can displayed doveoct.index  and  logview can dispalyed 
dovecot.index.log   but  it seems no command to displays dovecot.index.cache  
for us.  
 
 
                        thanks  
                               amandy