I make no assertion as to what any regulator requires or accepts. However, reading the Canadian regulations leads one to the understanding that an acceptable log of piloting experience is required to be presented when applying for an additional piloting privilege ('makes sense to me). Since the advent of Execl, that's been my sole format for recording my flying experience, and it is of course backed up. When I presented myself for a fixed wing CPL, I took my notebook computer, and showed across the counter, my Excel pilot log. I offered to sort and print it however the inspector wished, and he kindly declined having it on paper, seeing I had it, and recording totals on his form seemed to be enough. When I did my PPLH, I did maintain a separate pilot training record (PTR) log, and was told that when I submitted it for my license, it would not be returned. I haven't maintained a paper logbook since 1987.