PLEASE EXCUSE ME, I'M NEW WITH CCLEANER

Friends i wish to know if CCleaner only delete files that remains in my PC as rest of deleted files or if there is the risk that CCleaner deletes all my office and others utilities files when i see selected in delete-programs-office which files will be deleted?

Thanks for all your understanding and support and again, please excuse my question but i need to know this.

It only deletes temporary files.

For example, your list of recently opened documents.

It will never (unless there's a serious bug) delete any of your personal data.