STM32 product line in a spreadsheet?
The STM32CubeMX tool has an MCU selector module, that can export the product list and features in Excel format. It requires a bit of work to produce an usable spreadsheet, because you have to right-click on the table header, scroll down, and check every column you're interested in. Then click on the Excel icon to export it.

But if you have this tool, perhaps you don't need the spreadsheet at all.

The feature list is available as a .json file as well, it's at

~/.stmcufinder/plugins/mcufinder/mcu/mcusFeaturesAndDescription.json


on Linux systems, or in

\Program Files (x86)\STMicroelectronics\STM32Cube\STM32CubeMX\db\plugins\mcufinder\mcu\mcusFeaturesAndDescription.json


on Windows. Recent versions of Excel might be able to import it.