Photoshop CC Cannot open Phase One .iiq 100mp file

That's as close to the Holy Grail as you get... I want one . Now, should I buy a new car or an IQ 100? Tough call...

SasquatchPatch wrote: There are also some subtle behind the scenes things that C1 does

They say that about C1/Nikon as well. I have Capture One as well as Lightroom, and my own impression can be summed up as "meh". It's just a hype.

That said, C1 is still Phase One's own software, so it makes sense to use that. If nothing else, it should be particularly well tuned for the IQ sensor's characteristics.

Why are you not using Capture One to process your Phase files? It really does provide the best raw file conversions for the files from your camera. There are also some subtle behind the scenes things that C1 does with the medium format Phase files that no one else can do. And C1 is sharper, has better colors and is more efficient than any Adobe product.

Is this a recently released camera?  The list below shows that at least Phase 1 model with iiq files is supported.  If your camera is new, then you can expect ACR support probably in the next update.

Cameras supported by Camera Raw

BTW  You posted your question twice.  You don't need to do that, so I have deleted the duplicate post.