compressed old files

Easy way is to delete them from whatever they are stored on.

Also without knowing more I would suggest that you expand your question somewhat so we stand the possibility of helping you here so tell us what you want to delete and from where.

OH BTW posting your E-Mail Address on a Public Forum is very bad practice as you will get flooded with Spam when the Bots roaming the Net find it so I would suggest editing it out of your Original post.

Col