Remove logs by date

Hi

I Need To Remove Logs Older Than April 1 St(4/1/2007) By Date

I Have A Script To Remove 3 Months Old Like Using 90 Days

Thanks

Provide a sample file we can work on please.

like

xxxxx.log.20070509125745
xxxxx.log.20070103113245
xxxxx.log.20070314105745
xxxxx.log.20070219215715
xxxxx.log.20070429162035

With awk:

awk -F"." '$3 > 20070401000000' file