BTW, Sysinfo did not open after downloading. I am using a MacBook Air, running OS10.13.6. Core i7 8GB RAM. I have tried a variety of email clients and online storage apps and the simplest thing I can imagine is impossible. Highlight an email in a folder, select "all" and click drag it to a folder on my desktop. I know that that is impossible according to every tech support under the sun (thus far) but my question is this: Why?