Previous-version file formats

Supported on: At least Windows Server 2008 R2 or Windows 7

Registry

HKCU software\policies\microsoft\office\16.0\ms project\security

Options

legacyfiles enum
  • Do not open or save -> 0
  • Prompt when opening and saving -> 1
  • Allow opening and saving -> 2

Description

Allows you manage whether users can open or save files in Project with file formats from previous versions or file formats that are not default. By default, users can not open or save files with formats from previous versions.