scientific plotting software like Excel with more functionality without coding? Is there any (popular) software for Mac that generates high quality scientific plots for publications without needs for coding? Specifically, I am looking to generate sub-plots or panels where Excel does not have such functionality.

Seems Plot is one good choice:

https://www.macupdate.com/app/mac/20194/plot
You can look at some online services such as Plotly, which works with Excel, R, etc.