row_min: 0; row_max: 11000
  col_min: 0; col_max: 255

### cereal.xls
 Row, Column = (0, 0)
  value: No.

### cereal.xls
 Row, Column = (0, 1)
  value: Name

### cereal.xls
 Row, Column = (0, 2)
  value: Sugar (g /100g)

### cereal.xls
 Row, Column = (1, 0)
  value: 1

### cereal.xls
 Row, Column = (1, 1)
  value: Wheat

### cereal.xls
 Row, Column = (1, 2)
  value: 0.3

### cereal.xls
 Row, Column = (2, 0)
  value: 2

### cereal.xls
 Row, Column = (2, 1)
  value: Maize

### cereal.xls
 Row, Column = (2, 2)
  value: 7.7

### cereal.xls
 Row, Column = (3, 0)
  value: 3

### cereal.xls
 Row, Column = (3, 1)
  value: Rice

### cereal.xls
 Row, Column = (3, 2)
  value: 0.1

### pulse.xls
 Row, Column = (0, 0)
  value: No.

### pulse.xls
 Row, Column = (0, 1)
  value: Food

### pulse.xls
 Row, Column = (0, 2)
  value: Sugar (g /100g)

### pulse.xls
 Row, Column = (1, 0)
  value: 1

### pulse.xls
 Row, Column = (1, 1)
  value: Pea

### pulse.xls
 Row, Column = (1, 2)
  value: 6

### pulse.xls
 Row, Column = (2, 0)
  value: 2

### pulse.xls
 Row, Column = (2, 1)
  value: Chickpea

### pulse.xls
 Row, Column = (2, 2)
  value: 11

### pulse.xls
 Row, Column = (3, 0)
  value: 3

### pulse.xls
 Row, Column = (3, 1)
  value: Pigeonpea

### pulse.xls
 Row, Column = (3, 2)
  value: 1.8

### fruit.xls
 Row, Column = (0, 0)
  value: No.

### fruit.xls
 Row, Column = (0, 1)
  value: Name

### fruit.xls
 Row, Column = (0, 2)
  value: Sugar (g /100g)

### fruit.xls
 Row, Column = (1, 0)
  value: 1

### fruit.xls
 Row, Column = (1, 1)
  value: Apple

### fruit.xls
 Row, Column = (1, 2)
  value: 10.12

### fruit.xls
 Row, Column = (2, 0)
  value: 2

### fruit.xls
 Row, Column = (2, 1)
  value: Pear

### fruit.xls
 Row, Column = (2, 2)
  value: 10

### fruit.xls
 Row, Column = (3, 0)
  value: 3

### fruit.xls
 Row, Column = (3, 1)
  value: Pineapple

### fruit.xls
 Row, Column = (3, 2)
  value: 10.0009

 ###### Over ##########