What is the Best Way to Save Zimbra Briefcase into Office 365?

Mike Lucanc | how to software technology Zimbra | 6 minutes read | Modified on: 13-04-2023

Are you a Zimbra user and have thought about moving to Office 365 environment? But worried about an important database stored in the Zimbra account? Wondering how will I save the Zimbra briefcase into Office 365. Searching for a trouble-free way out to implement the same? No worries, go through the segment discussed herein which users will find a solution with the help of which they can directly save Zimbra briefcase into Office 365 with emails, calendars, contacts, and other items.

These days, when competition is so high, users need to keep business planning up to date in order to make their business run. This involves the updating of email clients. So, Zimbra is one of the popular emailing programs, which is used commonly among business organizations to send/receive or exchange files or information across the globe.

Detailed Overview – Zimbra & Office 365

Zimbra has designed ZCS i.e. Zimbra Collaboration Suite that includes Zimbra Desktop, Zimbra Web Mail, and Zimbra Server. The application helps to manage multiple IMAP, POP3, SMTP, Gmail, and other accounts in a single environment. One can even retrieve emails from the Zimbra app in both offline and online modes and from multiple platforms such as Linux, Windows, Mac, etc. A single mailbox folder of users includes data from emails, contacts, calendars, briefcases, tasks, and more. All these are stored in a zip file, which is represented as .tgz.

Office 365 is a cloud-based platform, a product of Microsoft. It contains all the items contained in the desktop Microsoft Office Suite. It allows users to access data anytime and from any platform. Its basic subscription plan provides accessibility to MS Office applications like PowerPoint, Excel, OneNote, Access, etc., and other services, which get enabled over the Internet such as cloud storage, Lync web conferencing, 60 minutes Skype per month, hosted exchange online services, etc.

Reasons to Save Zimbra Briefcase to Office 365

Zimbra Desktop is a cross-platform email application. However, it is still losing its marketplace, why? Because many advanced email clients are coming up with more remarkable functionality and features. Many users want the program, which gets updated from time to time, but after gaining popularity for a few decades, Zimbra has stopped its upgradation due to its slow response time. Moreover, it delivers a long configuration process. Apart from this, the slow synchronization process frustrates users who want to do everything in a quick speed. That is why Zimbra Desktop services are now stopped. Thus, users are moving their accounts to cloud-supported applications. Because, they are flexible, secure, and highly advanced.

Now, if a user has deleted its account of Zimbra but still there are Zimbra supported files, especially the briefcases, which are required to retrieve in Office 365 environment, then in that case, Zimbra to Office 365 Tool is needed. But, before, discussing the migration process of Zimbra to O365, let us first know what is Zimbra briefcase and the procedure of how to access the Zimbra TGZ file with briefcases from Zimbra Desktop.

What is Zimbra Briefcase and how it is created in Zimbra?

Briefcase helps in managing the important documents of users. One can save their essential files in the same and access them quickly whenever needed after login. However, it allows users to upload crucial documents, presentations, spreadsheets, images, as well as .pdf files from the computer network. Even, the sent attachments with the email messages can also be saved in Briefcase. One can create multiple briefcases and organize their file.

Note. The uploaded files will be the copy of the original ones stored on the computer. So, any changes you make in a file stored in the briefcase does not change the original file stored locally.

Steps to Create Briefcase Folders

  1. Open Zimbra Desktop.
  2. Click Briefcase tab.
  3. Select Briefcase from the New list appearing on the toolbar.
  4. The Create New Briefcase window will pop-up. Specify the name for new briefcase folder. (Name must be unique).
  5. Select the folder hierarchy where you need to place the Briefcase. You can create new top-level briefcase or place the same under existing briefcase.
  6. Tap OK button. Now, the new created briefcase will display in Overview Pane.

How to extract items from Zimbra Desktop?

There are using who are not aware of how to extract data from Zimbra and in what extension it is stored. You can also check the steps discussed here and use the same to extract Zimbra items from the same.

  1. Open Zimbra Desktop and click Preferences button.
  2. Select Import/Export.
  3. A new window will appear asking to select the required data types such as contacts, emails, calendar, briefcase that you want in resultant file.
  4. Click Export, select Save File option.
  5. Choose the location to save the Zimbra data and click Save.
  6. Process will start and save all the data in zip TGZ file.
  7. Now go to the location and check extracted Zimbra .tgz file.

After extracting Zimbra database, download Zimbra to Office 365 Converter and perform the process of Zimbra briefcase migration to Office 365.

How to Save Zimbra Briefcase into Office 365?

Bitvare’s Zimbra to Office 365 Migration Tool is an application that directly saves Zimbra briefcase in Office 365 with emails, calendars, contacts, tasks, and other items. The software working is easy, friendly, and non-typical. Anyone can securely operate the application and migrate unlimited Zimbra briefcases in Office 365 account at once.


Moreover, it provides many features with the help of which users can perform the migration according to their requirements. However, users will find a free demo as well with the help of which they can check the procedure to save Zimbra briefcase in Office 365 for free.

Working Steps to Save Zimbra Briefcase in Office 365

Step 1. Download, launch, and open Zimbra to Office 365 Migration Tool. If you have TGZ files, you can choose the first option or if you have Zimbra webmail account and want to directly save the briefcase from the same to Office 365, then choose the second option. Click Next.

Step 2. Add Zimbra mailboxes on the software by navigating to the Add File(s) button appearing on top-left corner of the software screen.

Step 3. Another window will appear that will show three options i.e. Add TGZ Files, Add Folders & Add Extracted TGZ items. You can select the required option and load required briefcases on the application panel. Click OK.

Step 4. The tool will now start the scanning process of selected Zimbra mailboxes and load all the briefcase folders with other items on the software panel.

Step 5. You can select the required briefcase folder and the tool will list its files. However, you can click the required file and view its content in Preview section before importing the same into Office 365.

Step 6. Go to Export and click on Select Saving Options to choose Office 365 option.

Step 5. Enter Office 365 email ID. You can click I am Admin if you have Office 365 administrator account.

Step 6. Choose category and filter as per your requirements and click on Connect.

Step 7. The tool will show the Microsoft login screen where you need to provide the password of the specified Office 365 email ID.

Note. If a single user detail was provided, then the tool will start the migration after clicking the Connect button. But, if admin account details were provided and user have selected I am Admin option, then the tool will show another window where one wants to upload a CSV file holding multiple Office 365 admin users. And then click Export.

Step 8. The process will start and users can see the live migration progress on the screen.

Step 9. The tool will show “Process Completed Successfully” once it transfers all Zimbra briefcases to Office 365 account. Tap OK and close the box.

Now, you can go to Office 365 account to check the resultant files. However, you will see that the items in briefcase folder are accurate and their associated data is precise.


The write-up has mentioned the direct procedure to save Zimbra briefcase into Office 365. Bitvare’s Zimbra Converter Tool is a safe and proficient utility and possesses a GUI that anyone can effortlessly operate and perform the required task without any difficulty. The software provides features that deliver the accurate and desired output within seconds. However, the free demo of the tool is available with the help of which users can check the migration for free. It also allows saving the first 25 files from Zimbra briefcase to Office 365 free of cost.