put this file to 010 Editor
and we'll see it's a text format
```binwalk -e diagramDECIMAL       HEXADECIMAL     DESCRIPTION--------------------------------------------------------------------------------8676          0x21E4          Unix path: /schemas.microsoft.com/office/word/2003/wordml}}```
it's a microsoft document?
back to 010
lots of hex string and put them to a new hex file
and it's a normal png file
stegsolve this file and nothing to get 
abandon
put the rest of string into a new hex file
and binwalk it
wow~a lots of .xml file!
watch all of this by excel
we get a file```.\Untitled1.s.extracted\xl\charts\chart1.xml```
there got many of SECT marks
and go right
there are some numbers like ascii
83 69 67 84 123 52 110 100 114 48 105 100 115 95 115 104 48 117 108 100 95 98 51 95 110 49 99 101 125
translate it one by one 
you will get the flag
ps:123 : '{'  125:'}'
remember it and you will happy more
