Extensions or Apps Offered by gcaltools.com
Crx4Chrome includes 2 extensions from the developer gcaltools.com.
GCalPlus crx 2.0.16 for Chrome
About: Extra Options for Google Calendar...
Sheets2GCal crx 13 for Google Sheets
About: Sheets2GCal is an add-on for Google Sheets to allow fast event creation in Google Calendar...