The Google Search archive not only lets you download the archive but also delete it.
This gives you access to your data when and where you want.
Kindly remember, deleting the list does not stop at Googles search engine function.
Google says that it will store activity separately to prevent spam and abuse and to improve our services.
Step 4: Click Create Archive.
Step 5: When your personal archive is ready to be downloaded, Google will send you an email.
it’s possible for you to then view the archive in the Takeout Folder of your Google Drive.
you might also choose to download the list as a zip of JSON files onto your machine.
Step 4: Choose time period for which you want to delete items.
To delete your entire history, pick the Beginning of Time.
Step 5: Click Remove.
Otherwise, if you ever want to leave the service, you may have to leave your data behind.
source: www.techworm.net