Converting a mat grid file to xyz

I have grid mat file that is struct field

GSM_GRID.mat struct with fields:

1. time: [117×1 double]
2. grid_data_grace: [180×360×117 double] --> the size (grid_data_grace)= 180 * 360 which mean each value in grid have xy and values in every time.
3. str_year: {1×117 cell}
4. str_month: {1×117 cell}

I am trying to convert grid_data_grace to xyz each time (117) in csv file. BUt, I don't know how to convert it.

I have problem in converting it each time. the following is the code that I use to convert it.

s= load('GSM_GRID.mat');
value={{'time','grid_data_grace','str_year','str_month'}};
%s=struct(M,'grid_data_grace')
[lon,lat]=size(grid_data_grace)
       lon=0.5:359.5;
       lat=89.5:-1:-89.5;
       s= M.grid_data_grace
       
file=fopen('ewh.csv','w');
for y=1:180;
    for x=1:360;
          fprintf(file,strcat(num2str(lat(y)),',',num2str(lon(x)),','));
          fprintf(file, '%.16g,',s(y,x));
          fprintf(file,'\n');
    end
end
fclose(file);

Answer 1

[KSSV]

A = rand( [180,360,117) ; 
for i = 1:117
    T = A(:,:,i) ; 
    iwant = T(:)
end

Answer 2

[Manish Jangid]

i have a grd file downloded from IMD website which temp data file. can read this file matlab? is yes than how?