Display demanded cell values of excel file

Question

arr[i]={1 5 3 } //n no of element

x=4 //any number between 1 to 500.

My Excel file structure is like this.

        1         2       3       4       5 .....25

1      1.2    3.4    4.5    6.7    8.9..

2      8.9    7.8    8.0    4.5    3.6

3      4.6    5        4      5.6     6.7

4      2.0    3       5.0      7       7

5      1.2    3.4    4.5    6.7    8.9

.         .

.         .      

.         .

500

 

then the respective value should be store in array.

res[]={2.0, 7 ,5.0}