How to migrate our data from Google apps to outlook?

https://www.toolscrunch.com/mac-gsuite-backup.html-:If you are a Mac user then you can use this software

If you are thinking to take a backup of Gmail service of Google then you have to use Google takeout to take a backup in MBOX format. After that, you can convert MBOX to PST format by using MailsDaddy MBOX to PST converter. because there is no manual method availble to give you best results. This tool is a secure solution for importing mbox to pst format. 

for more detail visit official website.

To download google apps data including emails, contacts, calendars and documents to local folders, you can use different solutions like: Use Google and create an archive of the entire mailbox data to local Configure Microsoft Outlook with G suite and access the PST file from Local folder Use Google Apps backup tool to download the emails in PST, MSG, EML or MBOX file formats to local folders. visit : http://www.osttopstapp.com/google-apps-backup.html

Some tools are available in the market, you can search through google or I will recommend softaken google app backup tool, this software will help you to convent emails from google apps to PST file format. Go ahead and download the software. 

Can acheive by using Datavare Google Apps or Backup Google Apps

There are multiple tools available that will help you to backup your database from Google Apps to multiple file format. Here are few examples search and use

1.       Softaken Google Apps Backup

2.       Datavare Google Apps Backup Tool

3.       Backup Google Apps by GainTools

4.       Mailvare Google Apps Backup software