An interesting turn of events. I actually found a file that contained a number of styles (including the KVE one. Yay!), but not all. I appears to be in a presets file from some earlier incarnation of PSE. And the styles had that dog-eared paper looking icon that meant they could be loaded into my PSE 11.
Don't know why it's there, don't know why it doesn't contain more styles. Ours not to question why...
When I downloaded PSE 11 from the Adobe site, it only had the Adobe default styles in it. So I figured I'd just load styles back from the folder I kept purchased styles in. All of them had been installed on PSE at some time or other. I just removed a lot of styles--it seemed like I had so many it was really slowing down PSE--and put them in a folder until I needed a specific style. This was done back at least 2 or 3 versions of PSE back.
It may be relevant that my original PSE 11 was NOT restored by BackBlaze
I went from I think Pse 8 (or whichever version went on a Mac) to PSE 11. I'm not sure how it got done but I still had all the styles. I'm pretty sure 11 was the first version that made it easy to install styles because II thinkPSE 10 (which I have on my laptop) was still the old way. I just took a look at it and there is no "Load Styles" option in the menu. I do know how to load the styles as I have done so successfully with several. It's just the ones in my file with the exec icon that won't open. I did actually try loading them the old way and interestingly enough the style title appeared in the menu thereafter but nothing else. Hope doing that wasn't a mistake, what with deleting the metadata.