Follow this easy step-by-step guide
Go to takeout.google.com, deselect all, scroll down until you find Gmail and select it
Download the information received back from Google
Create a folder in your G Drive (or on Dropbox) and add the folder containing your data, and paste the link in the form above.
I will send you back an Excel file containing a list of all the companies that have your data. Once you receive it, I will delete all your info.