when I am exporting Bookmarks from an EPUB e-Book on Android 4.0.3 using Cool Reader 3.1.2-27 I do get a text file, but it contains no bookmarks. The file isnt't completely empty but has the following format:
# Cool Reader 3 - exported bookmarks
# file name: >>>book name<<<.epub
# file path: /mnt/sdcard/Download
# book title: >>>book title<<<
# author: >>>book author<<<
This is followed by two empty lines., then comes the end of the file. NO BOOKMARKS!