People always say a computer generated document a “Word” file! For a spread sheet file, they say “Excel” file. For a presentation / slide show file most people say just “ppt”. Wonder why people say like this. Even if I prepare a text document with Libre Office Writer, they still call it “word” file. Whats more, even if it is a plain text file, they say “notepad” file.
Even if a file is generated with Microsoft Office, try to call the file as “Text Document” or “Spreadsheet file” or “Slideshow / presentation” file. Microsoft Office is just one among so many other office suits.