Hi, Thank you very much for the code

But I need to check that if the Date is valid or not

Lets say if we pass this SourceFile1_99999999999999.txt then should not return 1.

We need check the condition YYYY should be between 1950 to Current year month is between 1 to 12 and day between 1 to 31

My File format like FileName_YYYYMMDDHHMISS.txt

I appreciate if you give me idea on that.

Thanks,

Unnati