Download and install the SysInfo PST Viewer Tool on your system.

Click on Load Outlook PST to fetch your files from your Outlook account, or you can choose manually from your device.

Click on Browse and navigate to the .pst files saved on your system.

Allows users to preview complete emails, attachments, tasks, notes, headers, MIME content, and raw HTML data before saving or repairing the PST file.

To view the complete emails, click on the Open in Browser option in the bottom right corner.

Click on the Save Repaired File to move further in the process.

Various options are available to save your PST files, such as PST, EML, MSG, PDF, MBOX, and CSV.

Convert and save Outlook emails directly into a PDF document format while maintaining original email formatting, metadata, and attachments. It is ideal for document sharing, printing, and legal record management.

The Duplicate Handling feature helps users manage duplicate emails and contacts during the saving process. It prevents redundant data storage and ensures a cleaner and more organized export result.

This section provides multiple options for managing email attachments during the export process. Users can keep, extract, convert, or exclude attachments according to their specific requirements.

• Keep Attachments: It preserves all attachments within the exported email files.
• Attachments as Pages: The software can save email attachments as separate pages within the output document.
• Extract Attachments Separately: This feature extracts all email attachments into a separate folder while saving emails independently.
• Exclude Attachments: Users can choose to exclude all attachments during the export process to reduce the output file size and save only the email content.

The Custom Folder option allows users to define a personalized folder name and storage location for saving exported mailbox data. It improves file organization and simplifies output management.

Allows users to export emails from a specific time period for accurate and selective mailbox saving.

• Save All Time: Exports all emails without applying any date restrictions.
• Save Between Selected Dates: Saves only emails that fall within the chosen start and end dates.
• Do Not Save Between Selected Dates: Excludes emails from the selected date range during export.
• Start Date: Defines the beginning date for filtering mailbox items.
• End Date: Specifies the ending date for filtering emails during the export process.

This feature helps users continue interrupted export processes without restarting from the beginning. It automatically skips already exported files and resumes the remaining mailbox export operation efficiently.

• Enable Skip/Resume Detection: Detects completed export files automatically and resumes unfinished export tasks without duplicating data.
• Not Complete Files: Displays partially exported PST files that still need to be processed.
• Target Path: Shows the location of unfinished PST files selected for resume export.
• Output Folder: Displays the destination folder where resumed or exported files will be saved.

The Browse option enables users to navigate local drives and choose a specific destination folder for saving exported files securely.

The Save button starts the mailbox export or saving process using the selected filters, formats, and destination settings.

Displays a confirmation message after the PST file is successfully exported or converted.

Download and install the SysInfo PST Viewer Tool on your system.

Click on Load Outlook PST to fetch your files from your Outlook account, or you can choose manually from your device.

Click on Browse and navigate to the .pst files saved on your system

Allows users to preview complete emails, attachments, tasks, notes, headers, MIME content, and raw HTML data before saving or repairing the PST file.

To view the complete emails, click on the Open in Browser option in the bottom right corner.

Click on the Save Repaired File to move further in the process.

Various options are available to save your PST files, such as PST, EML, MSG, PDF, MBOX, and CSV.

Convert and save Outlook emails directly into a MBOX format while maintaining original email formatting, metadata, and attachments.

The Duplicate Handling feature helps users manage duplicate emails and contacts during the saving process. It prevents redundant data storage and ensures a cleaner and more organized export result.

This section provides multiple options for managing email attachments during the export process. Users can keep, extract, convert, or exclude attachments according to their specific requirements.

• Keep Attachments: It preserves all attachments within the exported email files.
• Attachments as Pages: The software can save email attachments as separate pages within the output document.
• Extract Attachments Separately: This feature extracts all email attachments into a separate folder while saving emails independently.
• Exclude Attachments: Users can choose to exclude all attachments during the export process to reduce the output file size and save only the email content.

The Custom Folder option allows users to define a personalized folder name and storage location for saving exported mailbox data. It improves file organization and simplifies output management.

Allows users to export emails from a specific time period for accurate and selective mailbox saving.

• Save All Time: Exports all emails without applying any date restrictions.
• Save Between Selected Dates: Saves only emails that fall within the chosen start and end dates.
• Do Not Save Between Selected Dates: Excludes emails from the selected date range during export.
• Start Date: Defines the beginning date for filtering mailbox items.
• End Date: Specifies the ending date for filtering emails during the export process.

This feature allows users to divide large PST files into smaller parts for easier storage, sharing, and Outlook management.

• Enable Splitting: Activates the PST split option to automatically create smaller PST files during the export process.
• Split Into: Users can define the size limit in MB or GB for each split PST file according to their requirements.
• Store Name: Allows users to assign a custom name to the split PST file collection for better organization and identification.

The Text Filter section helps users refine and export only specific email data based on selected conditions. It allows users to filter mailbox items using sender, recipient, or subject-related keywords before starting the export process.

• To: Filter emails based on recipient email addresses. Users can include or exclude specific recipients to export only required emails.
• From: This option helps filter emails from particular senders. It is useful when exporting emails from selected contacts or domains.
• Subject: Allows users to search and export emails containing specific subject keywords or phrases.

These advanced filtering options help reduce unnecessary data export, save processing time, and improve mailbox management efficiency.

This feature helps users continue interrupted export processes without restarting from the beginning. It automatically skips already exported files and resumes the remaining mailbox export operation efficiently.

• Enable Skip/Resume Detection: Detects completed export files automatically and resumes unfinished export tasks without duplicating data.
• Not Complete Files: Displays partially exported PST files that still need to be processed.
• Target Path: Shows the location of unfinished PST files selected for resume export.
• Output Folder: Displays the destination folder where resumed or exported files will be saved.

The Browse option enables users to navigate local drives and choose a specific destination folder for saving exported files securely.

The Save button starts the mailbox export or saving process using the selected filters, formats, and destination settings.

Displays a confirmation message after the MBOX file is successfully exported or converted.

Download and install the SysInfo PST Viewer Tool on your system.

Click on Load Outlook PST to fetch your files from your Outlook account, or you can choose manually from your device.

Click on Browse and navigate to the .pst files saved on your system. Select them, click Open, and then Load to access them in the tool.

Allows users to preview complete emails, attachments, tasks, notes, headers, MIME content, and raw HTML data before saving or repairing the PST file.

Use any keyword in the Email List search bar or apply Smart Search with filters based on From, To, Subject, Has Attachments, and Date Range. This allows for selective email search as desired from multiple emails altogether.

To view the complete emails on the web, click on the Open in Browser option in the bottom right corner of the Body tab.

Click on “Migrate to Office 365” from the above panel to proceed with the migration process.

(Type 1): Log in using Modern Auth (Browser Login) for Single User.

Log in to your Microsoft account using Modern Auth (Browser Login) for Single User. Enter your Outlook email address for a secure login via browser by entering your email address, password, and MFA (if enabled). Ensure your account is already logged in on the web for quick access.

(Type 2): Login using Modern Auth (Browser Login) for Admin.

Here, login to your Microsoft account using Modern Auth (Browser Login) for Admin. Enter your Microsoft 365 Exchange Admin Center ID and sign in with proper credentials via OAuth 2.0 authentication over the Graph API.

(Type 3): Login using Client Secret.

It is the Admin Impersonation login to your Microsoft account using the Client Secret, Client ID, and Tenant ID. You can simply add all three credentials created with a proper admin license from Microsoft for proceeding.

You can store your Login credentials for later use with the Remember this Account feature. It is useful to skip re-login everytime you open PST viewer to migrate your PSTs directly within the Office 365 account.

You can choose multiple options for what you actually want and what is best for your requirements (Emails/Contacts/Calendar Events). Also, with the Remove Duplicate feature, you can identify and skip similar emails and other items based on To, From, Subject, CC, and BCC.

You can edit the folder's name using the Export to Custom Folder option for easy access and identification within Office 365 after the migration. Moreover, use the Follow Tree Hierarchy to keep the original folder structure within the PST file intact, or choose Mapped with default mailboxes to identify and set yourself in which mailbox and which PST folder you want to save, like Inbox, Drafts, Sent Items, etc.

This is the customization option, which provides you Date Filter for the required data only. It helps in selective migrations from a particular timeline.

Click on "Authenticate" to continue; that will redirect to the browser, or "Cancel" to Exit.

If you are logging in for the first time, enter your email and continue; otherwise, choose an account from the page as shown in the figure.

Enter the password to complete the process of authenticating your target M365 account.

If you set up two-step verification on your account, then verify that & complete the process.

After a successful login, you will see this page for further processing. Click on "Proceed" to continue.

In the next menu, you can choose the files that you want to go for further processing. Click Confirm Selection to move ahead.

Now, select the user account for migration for your specific source PST files. Choose them from the list of all mailboxes. Tap Apply.

You can also select the destination of your M365 account users using CSV Import. Select your file from the system and upload it to configure and set target mailboxes from the CSV uploaded.

Once the source PST and the target mailboxes are mapped as you need to save the data, click on Save Mapping and Start

The next window displays the processing dashboard in real-time. You can also check the total files migrated, items, tasks, skipped, failed, and others.

This is the final window where you see the result. Congratulations! Your migration is completed. Click OK to close. Use View Logs to check the status of entire migration after the download.