How to export image data to Excel?

Looking for a program to convert a photo to a grayscale image and then export all the grayscale values to an Excel sheet. Thanks in advance!

Answer 1

[KSSV]

I = imread('myiamge') ;  % REad the RGB image 
I = rgb2gray(I) ;       % convert RGB image to gray scale 
xlswrite('myfile.xls',I)