Introduced Sparklines (mini-charts within a cell) and Slicers for filtering PivotTable data.
Why? Because distributing cracked software costs money (for servers, domain names). The "extra quality" repackers recoup costs by bundling malware. A 2019 study by Cybereason found that over 60% of "pre-activated" software downloads from non-official sources contained at least one form of malware. ms office 2010 pre activated extra quality