Terrific. I understand why you might like to do that, but I'd first like to convince you to use the built in MATLAB analysis and Visualizations apps in ThingSpeak. You can use the data import export tab in the UI to get one copy of the data and copy it to google sheets by hand for investigation, but once thats done, you can easily bring the analysis back to ThingSpeak, and use MATLAB to give you automatically generated analysis and plots.
Here is a very simple example where we read the data froma channel and calculate the average. Then a plot is generated that shows the average, and its constantly updated with new data, and available online to share and look at anytime. With MATLAB, availalbe for no additional cost in ThingSpeak, you can build much more complex analysis and automate it.
If you arent sure how to use MATLAB, you can ask here, or ask at the MATLAB AI chat playground for help building your analysis.