Validated and accepted software for all statistical related work for submission purpose is SAS, pretty much used by industry across the board. For standard submission data visualization etc, there are many choices, FDA chose one - not sure if I should say what it is or not - but I don’t know if it is subject to change and how often it is subject to change. One can license from the company who developed it to use it - used to be a small company but acquired by large one - but very expensive even for a not so small company, many try to use alternatives these days.