Created attachment 70860 [details]
The file that displays wrong characters
Some characters in the attached file are shown as letters in Writer (see screenshots), while they should be squares (as may be seen using MS Word Viewer software, as well as MS Word Web App).
Please do something!
Created attachment 70861 [details]
Screenshot of Writer
Created attachment 70862 [details]
Screenshot of MS Word Viewer - this is how it should be!
Both Writer and MS Word show proper characters in that formula.