Today I was trying to upload my ride data from my Garmin Edge (with SD card) to Strava and it did not work. I tried doing it again just when I noticed that the Activities Folder is now turned into a Unix Exec file. I've tried renamming it, changing externsion to .zip etc. but nothing works.
It's not a very important thing but this worries me that if it happens often I should not loose my riding and training data. Any help will be appretiated.
Note: have been using older Mac Air for 2yrs without any such issue. This error occured with my new Air Retina.