If this is a company app, your organization likely uses a system.
Open the company's internal app portal (e.g., Microsoft Intune or MobileIron ). Search for "Atlas" or "Telefonbuch." Tap . 2. Manual Sideloading (For Testing) download-atlas-2023-001-telefonbuch-ipa
If you have been provided this file for work or research, you cannot simply "open" it like a PDF. You must use specific tools to sideload it onto an iPhone or iPad. 1. Official Deployment (For Employees) If this is a company app, your organization