Excel Object: Impossible to open an embedded object

I'm new and have a question. Hoping that someone can help. I have received an Excel Document with embedded PDF Objects (first picture).

Embedded Adobe Acrobat PDF

I can't open it, because Acrobat Reader isn't installed and i have not the rights to install software.

error message german

I want to change the related program to pdf-xchange editor. Can anyone give me suggestions how to do that?

embedded pdf which is working

By the way: pdf-xchange editor is not listed in the object type list.

Object list

I don't want to save them on disc, just have the possibility to permanently open them, when I need it.

I hope you understand my Problem. Thanks in advance.

Patrik