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I downloaded a password list file that has MIME type application/octet-stream. When I open the file using gedit or when I run the head command I see the following:

$ head eNtr0pY_ALL_sort_uniq.dic 

How can I know what the characters that appear as a square are? Could I get the file as text/plain? I mean if this is a list of passwords that must be UTF-8 chars, right? Then why are they not showed like that?

If I execute file command it says: eNtr0pY_ALL_sort_uniq.dic: data
If I do the same with the -i option it says:

$ file -i eNtr0pY_ALL_sort_uniq.dic 
eNtr0pY_ALL_sort_uniq.dic: application/octet-stream; charset=binary

UPDATE:

If I execute the following command $ od -t c eNtr0pY_ALL_sort_uniq.dic > e.txt I see the following in the e.txt file:

0000000 n 001 n 001 001 001 n 001 001 001 001 001 001 001 001 1
 0a 01 0a 01 01 01 0a 01 01 01 01 01 01 01 01 31
0000020 n 001 002 n 001 002 003 004 n 001 030 n 001 0 n 001
 0a 01 02 0a 01 02 03 04 0a 01 18 0a 01 30 0a 01
0000040 1 1 2 3 4 n 001 1 2 1 2 3 4 n 001 1
 31 31 32 33 34 0a 01 31 32 31 32 33 34 0a 01 31
0000060 2 3 1 2 3 4 n 001 1 2 3 4 n 001 A B
 32 33 31 32 33 34 0a 01 31 32 33 34 0a 01 41 42
0000100 C 1 2 3 4 n 001 A B C D 1 2 3 4 n
 43 31 32 33 34 0a 01 41 42 43 44 31 32 33 34 0a

I do not understand what 001 means in ASCII. Could it be that it means that it is not an ASCII char. In that case would it be possible to convert that chars to UTF-8?

I also tried the following getting this error message:

$ iconv -f application/octet-stream; -t UTF-8 eNtr0pY_ALL_sort_uniq.dic -o e_utf8.txt
iconv: conversion from `application/octet-stream' is not supported
Try `iconv --help' or `iconv --usage' for more information.