ext3 are journaled FS, which means undeleting is quite difficult.
However, try R-Studio, it supports ext3.
R-TT also has a product called R-Excel, it might come back with better results, better ask them or contact member Alt(R-TT) from this forum, perhaps will give you better advice as to what to use.
cetverooki wrote:
I can extract hdd from enclosure and connect it to pc put i have no idea which program to use to "undelete" file.
That wouldn't be an option, even if you knew which software to use, since this drive comes encrypted through the usb bridge. So if you remove from the enclosure, all you will end up with would be a bunch of encrypted data.