New Green-era tape surfaces!

[lespaul1970]

Hi.
Can anyone put up a link of what I need to download to be able to open these? I'm kind of new to this, so Im obviously not doing something right or I dont have the proper material I need.

I signed up for dimeadozen, but everything Im trying to open says my computer doesn't recognize the file and cannot open it.
Again, sorry to ask. Im just new to all of this. Any help would be greatly appreciated. Thanks!