Excel changing its format for values separated with commas

Hello ,

Can someone help me with the problem.

I have entered the below numbers which are separated by a comma in one of the cell:

14155318,14156979,14155318,14156980,14155318,14156981

But as soon as I press enter, it is combining the entire value and changing to a different format but not staying in the above format which I am expected. Please help with a simple solution

Thanks that works but iam using this for the java to auto read the excel and input these values in the application. So i can use single quote at the start

Ok thank you

Any other solution that someone can suggest please ?