U301 URL Shortener add-on for Google Sheets.

Bulk generate short URLs in Google Sheets using U301 URL Shortener add-on.
Lets you to shorten multiple long URLs in your document by U301 URL Shortener service, use "=U301()" function to shorten.

Limitations:
U301 URL Shortener takes a per-IP rate limits, it depends on the peak during peak hours.
For more details visit: https://docs.u301.com

Video help:
Go to https://youtu.be/y90dYnjoSi8 for a video demonstration.