Is there a way for free users to share files externally?

Hi, have been looking in Zoho for a way to do this, but was led to a window inviting me to upgrade to Premium which wouldn't suit me. Would like to be able to share docs, plus sound files up to 20Mb with people that don't have a Zoho account. If I can't do this through my Zoho account, can anyone recommend a faster way to do this than through the free version of You Send It? I tried This service, but it took an exceptionally long time. This is for voluntary work with a charity, so don't want to be opening paid accounts. Thanks, Prema