Microsoft Office 365 Offline Installer -

This is the big one. If you are an IT manager setting up 50 laptops in a lab or deploying new computers in an office without a local WSUS server, you cannot afford to saturate your internet pipe. Download the ISO once, copy it to a USB drive, and walk from desk to desk. Installation time drops from 45 minutes per machine to 15 minutes.

If you frequently wipe and reload computers (common in schools, testing labs, or PC repair shops), the online installer becomes a bottleneck.

If you do not see the "Offline installer" toggle in your portal (common for certain Business Basic plans), you can use the Microsoft Office Deployment Tool. This is a command-line tool that downloads the ISO to your local network.

This is a common point of confusion. Microsoft does not provide an offline installer for Office 365 for Mac in the same way it does for Windows. microsoft office 365 offline installer

The Mac version Microsoft_Office_365_Business_Pro_Installer.pkg is technically a full package, but it is often just a wrapper for a web download. However, Microsoft does provide a "Suite" download for Mac IT admins via the Volume Licensing Service Center (VLSC).

This is the core of the offline installer. The setup.exe reads an XML file that tells it what version of Office to download and where to put it.

Open Notepad (as Administrator). Paste the following code: This is the big one

<Configuration>
  <Add OfficeClientEdition="64" Channel="MonthlyEnterprise">
    <Product ID="O365ProPlusRetail">
      <Language ID="en-us" />
    </Product>
  </Add>
  <Property Name="SharedComputerLicensing" Value="0" />
  <Property Name="PinIconsToTaskbar" Value="TRUE" />
  <Property Name="SCLCacheOverride" Value="0" />
  <Updates Enabled="TRUE" />
  <RemoveMSI />
  <Display Level="None" AcceptEULA="TRUE" />
</Configuration>

What this means:

Save this file as config-download.xml inside C:\ODT.

<ExcludeApp ID="Access" />
<ExcludeApp ID="Skype" />

If you want, I can:

Here are the key features of the Office 365 offline installer:

When you log into office.com and click "Install," you download a ~5 MB file. This file is a bootstrapper. When you run it, it phones home to Microsoft servers to download the entire suite (roughly 3GB to 5GB) directly into your temp folder.

The problem: If your internet cuts out, the download fails. If you have five computers to install, you download 5GB five times (25GB total). If you have a data cap, you are out of luck. This is a common point of confusion