Thanks to DoctorOhh.
As there is no Calibre for Android - does that means one can copy deDRM file with azw3 extension to Android tablet and open with Kindle reader?
Calibre PC "send to device" is not available because Samsung tablet GT-P7300 doesn't have USB.
What files are required to copy to Android Kindle folder?
PS Win root folder:
PC Win book folder:
Book azw3 extension file