Dashboard Widgets

I just updated to Big Sur from Mojave and found the alias for Dashboard (widgets overlay) kept in my dock no longer works. It seems to have been replaced with an iPhone-is control center. That's fine and handy but there were widgets (file extension .wdgt) I used for work that I would like to continue using. I see that they still exist in my ~Library folder. However, they do not automatically open in the new control center. And the old Dashboard application seems to have been eliminated. I don't see it anywhere on the disk --not even in the System Library folders. Is there a way to convert or import the .wdgt files into the new control center? Thank you.