To open this document, your computer must be running a supported version of Microsoft Office_application and a browser that supports opening files directly from the Office Web Apps.

 

When someone tries to open an Office file in their local client instead of using Office Web Apps or directly tries to edit a document in Office, the above error might show up or this one;

The document could not be opened for editing. A Microsoft SharePoint Foundation compatible application could not be found to edit the document.

Solution

• Check whether the IEx64-bit client is used and if so, change to the x32-bit version
• Check the IE Add-Ons via;