Thanks for the advice, much appreciated.

I tried the different extensions. Still no go. And again, it turned my computer into a slug. You can see it is "trying" to do something. Just what I don't know.....and the file never comes over. Once I left it to think all night. Nothing had changed come morning.

Macplay I'll have to get and try out. So there is still hope. Meanwhile I'm holding the files (and MANY others that failed to open - though successfully downloaded to the Shared folder)

More later after Macplay.