Highlight the last created .xls file in a folder

Jun 11 2013 8:11 AM

I have a list of .xls files named by their timestamp in a folder. E.g 2013_06_11_13_05_02Report, 2013_06_11_13_08_02Report etc. I have around 100 files and the program is working totally fine.

However, I would like to highlight the last created file in the openFileDialog. How do i do that?