Hello, I have carefully read your requirements, and I ensure you that, I can complete this job within 1 day.
I have more than 5 years of experience working with G-suite and successfully completed 110+ projects in Google sheet.
Based on my experience , It's so easy job for me.
I can show you example of my work which I have worked with Google sheets API.
I ensure you that, After seeing my work, You will definitely hire me for your future projects.
You will only need to pay after fully testing project.
Thanks,
Kishan