Diversity and Dissent - Premiere Pro

File Management Review 

Do not work directly from Orca. Make a folder on the Desktop with a meaningful name. Make sub-folders called Video Stills Premiere_Files Audio Within thew subfolder make additional folders as necessary. Copies all source files to the appropriate folders before importing to Premiere.

File Management Steps
Importing Media article

AVCHD files 
Files from the HXR camera are in the AVCHD format.
It's really a folder of many files but on the macOS it appears as a single bundle.
Do not rename or mess with the contents of the AHCHD file.
Premiere will know how to interpret the AVCHD bundle.