I use KOrganizer on my Kubuntu Linux laptop. Fortunately, I've found a way to get all the appointments from that and into my Android calendar. KOrganizer will export to an ics file, which I then copy via cable over to my Moto G. Then I use an Android app named ICS Importer to put all my appointments into the Calendar. The Calendar app should just be the default one that came with my phone. It's simply called "Calendar."
So, anyway, this is working great. I get to take around all my appointments with me without using Google Drive. However, when figuring out how to use ICS Importer, I must have done it more than once because I have numerous duplicated appointments. I want to just wipe every single appointment from Calendar on my phone. That way I can just re-import the ICS file and have only one of everything. How do I accomplish this?
So, anyway, this is working great. I get to take around all my appointments with me without using Google Drive. However, when figuring out how to use ICS Importer, I must have done it more than once because I have numerous duplicated appointments. I want to just wipe every single appointment from Calendar on my phone. That way I can just re-import the ICS file and have only one of everything. How do I accomplish this?