Rename it to Bookmarks. Should work as before.
Bookmarks is not listed n your profiles as 'Bookmarks.html'
MAKE A COPY FIRST!
Now you need to find out why an Export to an HTML file would delete it from your chromium User Data folder. I have done that operation more than a few times, and never a problem.
EDIT> just re-read. Do you mean that your Profile Folder was deleted along with everything in it? If so, then your problem is more than just a glitch.
Last edited by ironuser
on Wed Jun 05, 2013 11:16 pm, edited 3 times in total.