Yes, it appears to have been discontinued. Refer to the discussion at. Quote: The Data Analysis Toolpak was removed in Office for Mac 2008. [emphasis mine] However, the following is a free third-party tool [.] [. Goes on to mention the StatPlus software you already mentioned.] See also:. Quote: Cause: Excel 2011 does not include the Analysis ToolPak. Video downloader for mac. Solution: Download StatPlus:mac LE for free from AnalystSoft, and then use StatPlus:mac LE with Excel 2011.

Mac Data Analysis for Excel (Knowledge Miner yX) is a knowledge and data mining tool that works with data stored in Microsoft Excel for Mac to build predictive and descriptive models from this data autonomously and easily.

That last link used to include loads of comments from disgruntled Office for Mac users, but Microsoft seems to have removed comment functionality from that help center article. Surely you can find disgruntled comments re: the above elsewhere on the net.