Office 365 Proofing Tools Offline Installer ((link))

Report: "Office 365 proofing tools offline installer"

How to Use Office 365 Proofing Tools

1. Air-Gapped / Secure Environments – Government, defense, and financial institutions often block internet access on production workstations.
2. Large-Scale Deployments – Downloading 50-100 MB per language for 1,000 PCs over a shared internet pipe is inefficient.
3. Persistent Installation Failures – Firewalls, proxy servers, or corrupted cache can cause the online installer to hang. The offline installer bypasses this.

<Configuration>
  <Add OfficeClientEdition="64" Channel="Current">
    <Product ID="LanguagePack">
      <Language ID="fr-fr" />
      <Language ID="es-es" />
    </Product>
  </Add>
</Configuration>