If you often work on MS Excel, then it is very simple to add the graph in the spreadsheet. Adding the graphs or charts makes your data more interactive, productive and attractive and creating and adding the graphs is very easy. However, there are straightforward steps for creating and adding the graphs and charts in the spreadsheet while using the Google Sheets or Microsoft Excel but still, the problem lies with the sharp edges in the graph that appears by default. Even though the graphs define the up curves and downs of the data exactly, still some people don’t prefer it.
Please read the originial post here: https://webroot.uk.com/blog/how-to-make-a-curved-line-graph-in-excel-google-sheets/