Exchange Mailbox Export to Excel Guide 2026

Microsoft Exchange – Export Mailbox Sizes to Excel

If you want to export an Exchange mailbox database list to Excel so that you can see how large users’ mailboxes are, you can do this using the Exchange Management Shell (EMS). All you need to do is to login to your Exchange server with your mailbox database on, open up the Exchange Management Shell […]

By Andrew Armstrong • 1 min read

If you want to export an Exchange mailbox database list to Excel so that you can see how large users’ mailboxes are, you can do this using the Exchange Management Shell (EMS).

All you need to do is to login to your Exchange server with your mailbox database on, open up the Exchange Management Shell (EMS) and then run the following command:

Get-MailboxStatistics -Database "First Storage GroupMailbox Database" | Select DisplayName, ItemCount, TotalItemSize | Sort-Object TotalItemSize -Descending | Export-CSV C:MBSizes.csv

Press enter and this will export the data into a CSV file on the root of your Exchange Server.

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Andrew Armstrong

Andrew Armstrong is a UK-based IT professional with 26+ years of hands-on experience in Windows, Windows Server, SCCM/ConfigMgr, Active Directory, PowerShell, and enterprise infrastructure.

He founded TechyGeeksHome in 2010 and has published over 1,500 practical guides covering real-world IT problems and solutions. When not solving IT problems,

Andrew develops free Windows utilities including Ultimate Settings Panel, which has been downloaded over 850,000 times.

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