Full SVG graphics support: Excel 2019 now supports scalable vector graphics (SVG), which means your graphic images won't pixelate when you increase the image size, as illustrated by the small and larger hiker image in the screenshot below.
500+ new built-in icons: Excel offers 500+ new built-in SVG-compliant icons for creating dashboards and infographics; examples of the new hiker and mountain icons are displayed above.
New forms capabilities: Excel 2019 now works in unison with Microsoft Forms to produce better looking documents to solicit responses to questions such as those included in surveys, polls, and quizzes.
As you collect automated responses, you can open the survey results in Excel for further analysis or charting of the collected data.
Chart improvements: New options in Excel 2019 allow you to better control axis information on your funnel charts, such as tick marks and number formats, and you can now also produce color-coded heat maps.
The simplest introduction to using Mathematica from within Excel is to type the 'Eval' function and use this with various Mathematica expressions for mathematics or graphics.
The above features are always available, as the link is automatically loaded each time Excel is started.
It is unfortunate that the applications developed in Mathematica cannot be deployed as stand-alone functions to those users of Excel who are not mathematically inclined and, therefore, do not have Mathematica on their computers, but I'll leave that for another version.
TABLE 1: New Features in Mathematica Link for Excel 3 Display of typesetting and formatted output in Excel Ability to create Mathematica-based macros Suite of Mathematica functions to interact with and automate Excel