Power Query is a fantastic tool and we all love it. Make it sure to check out this tutorial (Excel Power Query Tutorial). You can also use it for combining the text from a list in a single cell. Below are the steps.
Select the range of the cells and click on “From table” in data tab.
It will edit your following data into Power Query editor.
Now from here,you have to  select the column and go to “Transform Tab”.
From the  “Transform” tab, go to the  Table and click on “Transpose”.
For this, you have to select all the columns (select first column, press and hold shift key, click on the last column) and press right click on the mouse and then select “Merge”.
After that, from Merge window, select space as a separator and also select the  name the column.
In the end, press OK and click on the “Close and Load”.
Now you will have a new worksheet in your workbook with all the texts present there  in a single cell. The best thing about using Power Query is that  you don’t need to do this setup again and again.
When you update the old list with a new value you  just need to refresh your query and it will add that new value in the cell and it's that easy.