Here’s a concise, neutral description you can use:

"Steinberg Cubase 5.12 Final 3264bit by Antony GR (RAR) — likely refers to a compressed archive (RAR) circulating online that claims to contain a version of Steinberg Cubase, a digital audio workstation (DAW) used for music production. The label '5.12' suggests an older Cubase release (Cubase 5.x era), while '3264bit' appears to be an unclear or incorrect technical tag—typical legitimate software is distributed as either 32-bit or 64-bit builds, not '3264bit'. 'Antony GR' is probably a handle of the uploader or packager.