Renaming Multiple files in folder C#

Feb 22 2021 5:14 AM

I have over 200 files in a folder with Names like "Abc_Aucho.txt.202102011200", "Mnz_Aucho.txt.202102011210" I want to Replace this Abc_Aucho.txt.**20210201**1200name with DateTimePicker value on the button click event

Thank you in Advance.