I got it (finally) 
Sorry John, it's clear now and thanks for explaining detail / sending the breakdown.

No you are to be complimented. You listened that is the most valuable thing anyone can do. 

32 and 64 bit floating point mathematics are used for ternal processing of audio and or fx processing.

While 32 bit files can be exported they are no longer floating point.

Also while 32 bit files can be exported the only use for it would be to import into another program for further manipulation. Why? As yet there are no devices capable of playing back 32 bit files. There is no need. From an audio standpoint while internal numerical calculations can be more refined with less rounding errors, by the higher bit rates, for the purpose of listening there is no point for that resolution.

You'll get better results by increasing sample rate and that is a hot bed of subjective thought that can lead to months worth of arguments.

Of course you can create 32 bit floating point files and 64 bit FP files too. Check page 1105 in the Platinum manual. 

I don't know in Sonar where you can select Floating point as file export bit depth.

I know what it says in the manual which is a little ambiguous. It doesn't actually say that Sonar can export those files just that they are can be used in Sonar.
Where in the export dialog do I select 32 or 64 bit float as my export bit depth. It's not available in any version of Sonar I've ever owned. Perhaps a screen shot showing you making that selection.

Isn't it available as an option in the Bit Depth parameter of the Export Screen?
 
In fact I'm 100% sure that's where it is and I routinely export mixes @ 32 bit for subsequent album compilation in a different project.

Bitmeter uses high quality placebo FX <TM> processing :)

LOL! tm that now!

Noel Borthwick [Cakewalk]
Bitmeter uses high quality placebo FX <TM> processing :)

Is that the same technique used for USB cables? I love the reviewer who said that when connecting one of those $600/foot cables made of unobtainium to his D/A converter, the sound had a warmer, more transparent quality.