self-methods/sample.csv Secret

## sample.csv

          
            no
            name
            age

            
              1
              taro
              25

            
              2
              ken
              28

            
              3
              akari
              13

            
              4
              takeshi
              56

            
              5
              jiro
              75

            
              6
              satoru
              33

            
              7
              haru
              26

            
              8
              korosuke
              14

            
              9
              meme
              82

            
              10
              saori
              46
no	name	age
1	taro	25
2	ken	28
3	akari	13
4	takeshi	56
5	jiro	75
6	satoru	33
7	haru	26
8	korosuke	14
9	meme	82
10	saori	46