For Office you must install a font before starting an Office application otherwise Office doesn't know about it.
wikkizak ha dicho 
how can i use these fonts with MS Words...? i have already installed some fonts
How did you have install your font ?
If the font are installed correctly on Windows, you can use it with all softwares, including MS Word.
To know how to install fonts, look at the FAQ :
http://www.dafont.com/fr/faq.php#win
For Mac users :
http://www.dafont.com/fr/faq.php#mac Look my message just up of yours.

I have just joined this group and am having similar problems ie how do I use the fonts I have just DL from the site ,I want to use fonts for embroidery etc, also just in Word, the site the group is sending us to view does not come up and the how to install infomis not in English, I apologise I'm a complete newbie just found the great site and DL fonts I like but no idea what to do next
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