Unfortunately, the .fcxe archives can be opened only with FileCapsule Deluxe tool. This software is available only in Japanese and its latest version is fully compatible with Windows 7, Windows Vista and Windows XP on both 32 and 64bit architectures. In order to fix the issue, I suggest your remove it from your computer (Control Panel > Uninstall a program) and download and install its latest version. You can obtain a link to download the software using Google search engine.