Recently, a friend came to me with a problem. She's working as a secretary, and when she told me that she had difficulties with a Microsoft Office file, I was pretty sure that I would not be able to help her.
A colleague had sent her the file, but apparently this colleague was using a different version of Microsoft Office. When she tried to open the file, an important table was missing in the document.
I told her that I hadn't used Microsoft software in more than a decade, but she insisted that I have a look at her file.
So I opened her file in Abiword, without a problem, and to her surprise the table appeared exactly in the right place of the document. Consequently, she urged me to give her a copy of Abiword, which I gladly did.
Oh well. The day that secretaries start to install Abiword on their computers in order to be able to open Microsoft Office files must be a really black day for the software vendor.