KB0045: Excel doesn't open when I double-click an Excel file

  1. Home
  2. Resources
  3. Knowledge base
  4. KB0045

Problem

Under certain circumstances, an Excel setting gets switched on which prevents Excel from receiving commands from other applications. This also affects opening files on double-click.

Solution

  1. Open Excel from the Windows Start menu
  2. Open the Excel options: File → Options
  3. Go to Advanced > General
  4. Make sure that Ignore other applications that use Dynamic Data Exchange (DDE) is not checked.