Office365 Backup Software

(5/5) 860 Reviews

Highly rated solution by IT experts for backing up Office365 mailbox data to a local drive. Download Office365 account emails, contacts, calendars, and other data items with the most secure process. Backup mailbox items from any Office36 account and folders such as- in-place archive, primary mailbox, or custom folder. Extract and save every Office365 item with original information in 10 different export optionsPST/ EML/ EMLX/MSG/ HTML/ MHTML/ MBOX/ PDF/ MBOX/ Thunderbird..

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100% secure

Starting $69

* Available Free Demo : - Backup 20 items from each Office365 mailbox folder for free.

Highlighted Top Features

  • Backup Office 365 account mailbox items in 10+ file formats.
  • Download the entire mailbox or selected folders to Outlook PST.
  • Save Office365 mailbox items individually in multiple formats.
  • Export and save mail folders to MBOX files with 2 different options.
  • Import Office365 mail folders directly into a Thunderbird profiles.
  • Backup emails/content/calendars and all other o365 mailbox items.
  • Export data from selected mailbox folders of Office365 account.
  • Download all Office365 account mailbox along with original data.
  • Manually select a location to save downloaded O365 account data.
  • Get the mail filtering function to backup only essential emails.
  • Naming convention to save resultant email files with custom name.
  • Smart GUI for easily completing Office 365 backup process.
  • Executable on all Windows O/s version (up to Windows 11)

Enstella Office365 Backup Software - Overview

Download/ Backup Office365 mailbox to computer

  1. A straightforward way to backup emails/contacts/calendars and other items from Office365 account mailbox. With this Office365 backup software, get a wide range of advanced features to make this backup process an easy task.

  2. Extract mailbox items from Office365 account and save as 10 different file types including- PST, EML, EMLX, MSG, HTML, MHTML, PDF, MBOX, Thunderbird. Complete backup process from any windows-based computer and access Office365 mailbox items locally.

office365 backup

Export and Save Office365 mailbox items into 10 different backup options -

Available Backup/Export options

backup office365 mailbox to pst


export alll Office365 account emails in single mbox

Single MBOX

save each Office365 mail folder to separate MBOX file

Separate MBOX

Save each office365 mailbox items to separate MSG files


Save emails separately in EML files


save emails separately in Apple Mail emlx files


export emails to HTML files


export Office365 emails to MHTML files


Save office365 mailbox items in PDF files


Import Office365 mailbox folders to THunderbird profile


Office365 Mailbox Backup Software- All Features

Backup in 10+ file formats

Export data from Office365 account's primary mailbox, in-place archive and custom folder to your computer. Extract office365 mailbox items and save them in 10 different file formats like- PST, MBOX, Thunderbird, EML, EMLX, MSG, HTML, and more.

backup Office365 Mailbox to PST

Export Office365 Mailbox to PST

Take Backup of entire mailbox as well as download data from some selective folders of Office365 account and save in Outlook PST file. Get the ability to save all Office365 account data in a Unicode PST file and access it with any MS Outlook edition (including- 2021).

Save Each item as Separate file

Extract data items from the selected folders of Office365 account & preserve them separately. Each extracted mailbox item, save in individual file with all relevant information. Save items separately in file formats including- EML, EMLX, MSG, HTML, MHTML, & PDF.

office365 mail folders save to mbox

Backup Mail folder to MBOX files

Download mail folders from Office365 account in the form of MBOX files with 2 distinct options -

  • Single MBOX: - Combine all mail folders and get all emails in a single MBOX file.
  • Separate MBOX: - Each mail folders of Office365 save in separate MBOX.
import Office365 mailbox to Thunderbird

Import mailbox to Thunderbird

Directly imports Office365 account's mail folder to email accounts that configured in Thunderbird email client. Software auto-detects Thunderbird profile's storage location and moves all Office365 account's mail folder to that path with a simple process.

Download all mailbox items

Swiftly extract all kind of data from Office365 account mailbox. Download contacts, calendar, tasks, notes, and emails with all relevant details. Complete backup process with maintaining data integrity and preserving each item in their original format.

export chosen mail folders

Export Selective Mail Folders

Export entire Office365 mailbox by choosing all folders at once or taking backup of data from selected folders by choosing needed folders. Select folders containing your required data and without difficulty export data from only chosen folders.

email export of selective dates

Date-wise mail filtering

With mail filtering by date option back up Office365 account emails of certain selected dates. For date selection select a start date in the "From" field and an end date in the "TO" field. After this selection extract emails of your selected dates from Office365 account.

customize names of email files

Multiple Naming Conventions

Get access to the naming convention function, while saving emails in - EML, EMLX, MSG, HTML, MHTML, and PDF files. With the Naming conventions option, provide names to the resulting files with various patterns made up of combinations of email attributes—"from," "date," and "subject."

self choose saving location

Saving location Self-selection

Office 365 backup software enables users to choose their desired path to save downloaded files containing Office 365 mailbox data. Choose a location/a specific folder from your hard drive on your computer and easily save the Office365 backup to that specified location.

clean and easily accessible GUI

Easy Graphical User interface

An easy-to-use graphical interface is available to operate the software easily by all types of users. Both technical and new users can handle Office365 mailbox backup tasks easily and flawlessly through this software.

Working on all Windows edition

For Office mailbox backup, users can run and use this software on computers running any version of Windows. Easily execute this software on the oldest to latest version of Windows O/S (both 32-bit and 64-bit), including- Win 11, 10, 8.1, 8, 7, Vista, XP, and below versions.

Backup office365 mailbox free of cost

Free Office365 mailbox Backup

The trial version is available with the facility to test all software functions and perform the Office365 backup process for free. Try this software with its free demo version and take backup of 25 items from each mailbox folder of each Office365 account.

How to use - Enstella Office365 Backup Software

Download Enstella Office365 Mailbox Backup Software

Export emails/contacts/calendars and all other mailbox items from your Office365 account to your computer.

Save data in 10+ file formats - PST, EML, EMLX, MSG, HTML, MHTML, MBOX, Thunderbird Mail files, and PDF.

Download Now 100% secure BuyNow Starting $69 How It Works Self Help

* Demo Info: Download up to 25 items from each folder in an Office365 account at no charge with the free demo.

Users Review

Software Awards

PCMAG Rating

Office 365 backup software earned a 5/5 rating from PC Mag for its seamless integration with Office365 and lightning-fast backup work of Office365 mailboxes.

SoftwareSuggest award

Amazing Office365 backup software! It changes the work life of users. Available with an attractive user interface for access with minimal effort. Received a "High Performer Award" from SoftwareSuggest for simplifying Office 365 backup job!

Demo & Full Version Software Comparison

Software Features Trial Version Full Version
Unlimited Office365 Mailbox Backup 25 items from each folder
Download data from specific folders
Backup Office365 Mailbox to Outlook PST
Saving items separately in EML/ EMLX/ MSG/ HTML/ MHTML & PDF
Export Office365 Mail folders to Single/ Separate MBOX
Import Office365 Mail folders to Thunderbird profile
Mail filtering by date
Naming Convention
Price FREE $69

Software Specification

Software Info
Enstella Office365 Backup software
Version:    2.5
Available License:    Personal, Corporate, & Technician
Supported Office365 Plans
Microsoft 365 Business Basic, Microsoft 365 Business Standard, Microsoft 365 Business Premium, Office 365 E1, Office 365 E3, Office 365 E5, Microsoft 365 F1, Microsoft 365 F3, Microsoft 365 E3, Microsoft 365 E5, and others
System Requirements
Processor:   Intel® Pentium Class (x86, x64) or equivalent
Hard Disk Space:   50 MB of free hard disk space
RAM:   Minimum 512 MB is required
Windows O/S:   Win 11/ 10/ 8.1/ 8/ 7/ XP/ Vista and older editions.
Internet:   An Internet connection with a good speed.
Software Delivery
(License Key)
Electronic:   YES
Mode:   Delivery by E-mail
Weekends Delivery:   YES

Frequently Asked Questions

Office365 Backup software

Following these steps using Enstella Office 365 Backup software, take backup of Office365 mailbox to computer: -

  • Download & launch this Office365 Backup software of Enstella systems (Windows-based).
  • Add email address of your Office365 account and click on the Login button.
  • In the new screen, input your Office365 account details & login with it.
  • Load Office365 account mail folders, and make selection of required folders.
  • Select a saving option from the Export Options list (for example: "Save to PST").
  • Hit the “Browse” button and choose a place from your drive for saving resultant files.
  • Select and use Naming Convention and Mail filter function for backup process.
  • Finally, press the Save Backup button and start taking backup of Office365 Mailbox.

Yes, for the entire mailbox or some selected folders of the Office365 mailbox, users can export and save to Outlook PST. Get Outlook PST files in Unicode format that are compatible with all MS Outlook versions up to 2021.

Software offers users saving each Office365 mailbox items separately in file types including- EML/ EMLX/ MSG/ HTML/ MHTML & PDF.

Office365 backup software has the ability to export Office 365 mail folders to MBOX files with 2 different options.

  • Save in Single MBOX: - Merge all selected mail folders of an Office365 account and save all emails in one MBOX file.
  • Save in Separate MBOX: - Export each mail folder from Office365 mailbox and save it in separate MBOX files.

With this option, users can import all mail folders from an Office365 account mailbox directly into their Thunderbird-configured email profiles/accounts, instead of saving the data in separate files at a specific location.

Not only mail folders containing emails, but users can also download other available mailbox items of Office365 account, such as contacts, calendars, tasks, notes, journals, and other elements.

Yes, users can choose their required folder from Office365 account and back up data from selected folders only.

Yes, this software completes the backup process without losing any data and without making any unnecessary modifications to the Office365 account data.

Mail filtering enables users to choose the dates of emails and with this user can backup only emails of the selected period.

It enables you to customize the names of resultant email files. Naming conventions allow you to choose a naming pattern from a list of different combinations of email attributes (subject, from, and date).

Every version of Windows O/S is supported by this software for the Office 365 mailbox backup process including- Win 11, 10, 8.1, 8, 7, Vista, XP, and others.

Yes, there is a free demo version of Office365 software available that can help users download up to 25 items from each folder of Office365 mailbox for free.

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