C# :: CFD Program - How To Export Data Of Array Into XLS File In Different Sheets

I have written a CFD program that final results store at several 2D arrays. For instance, temperature of a square plate. For every point of plate i and j (i,j), I have a temperature amount. On the other hand, these temperatures change by time.

theSpace.TheCells[i, j,0].Temperature

I would like to save these data into an excel file and each sheet contains data for specific time (for example, an excel file with 50 sheets that cell number shows the coordinate of a point and the value in it is the temperature and next time step data's will be in the next sheet of current workbook )

I was thinking my code should be something like the following note, but it doesn't work:

// Implement time loop
int counter = 0;
for (int step= 1; step<= MaxSteps; step++) {
// call Excel output method
ExportData(ResultsArray,step,nx,ny);

[Code] ....