In addition to moving your email from G Suite to Outlook, you and your employees can also move your G Suite Drive files to Office 365.
Sign in to your Gmail account, click the Google apps icon in the upper-right corner, and then choose Drive.
In Drive, select all of your documents, right-click, and choose Download.
After your files have been compressed into a downloadable .zip file, choose Save as at the bottom of your screen, and save the .zip file to your desktop.
On your Windows desktop, click the OneDrive cloud icon in the System Tray (located in the Windows Task Bar), and choose Settings on the menu.
In the Microsoft OneDrive dialog box, choose Add an account, and then sign in with your Office 365 email address and password.
Follow the steps in the setup wizard, and then choose Open my OneDrive folder.
From your desktop, open the .zip file that you downloaded earlier from Google Drive, select all of the files, and drag them to your OneDrive folder.
The files will start uploading and syncing to OneDrive for Business, as indicated by green check marks.
To move your files from G Suite to Office 365, sign in to Gmail, select Google apps, and then Drive.
In Drive, select all of your documents. Right-click and choose Download. Your files will be compressed into a downloadable .zip file. Choose Save as, and save it to your desktop.
Next, set up OneDrive for Business on your computer. From your Windows desktop, select the cloud icon, open the menu, and choose Settings.
Select Add an account. Then sign in with your Office 365 email address and password.
Go through the setup wizard, then open your OneDrive folder.
Now open the .zip file that you downloaded earlier from Google Drive. Select all of the files, and drag them to your OneDrive folder. The files will start uploading and syncing to OneDrive for Business, which you can tell by the green check mark.
If you have employees who also need to move their files, they need to repeat these same steps.