Lightroom exports my photos but when I go to view them they are not a supported file.

[hailey24219782aflz]

Hello, I'm a photographer and it's been a while since I did a shoot. I finally did one finshed my photos and what not exported the photos went well....then I went to my file on my computer and it says it is not supported. I do put my photos on a hard drive but never had this issue happen before when exporting them to a file on the hard drive anythoughts. 

[Rob_Cullen]

What Version Number of Lightroom?

What Operating System and Version Number?

"finished my photos"- How?

Exported to where? And in what format?

"photos on a hard drive.."  where? More details?

"not supported"  What is the exact complete error message?