Missing location data when transferred

Hello, I have an iPhone 6 with little memory. So I bought the iXpand in order to store my photos taken with the iPhone on the iXpand. On the iPhone, when viewing the photos, you get the location of the photo as well as the date and time taken. But when I transfer the photos to the disc, I lose the location details. This information is useful as I’m travelling all over Europe and I need this info. Is there a way of retaining this data?