unable to find a font in 89 page document

my client send me a file of 89 page document for printing
when i opened that file it shows me 3 fonts which is not present in my system
now my client said to open that file and use some substitute on that because his designer is not available
now i am unable to see where that font which i choose is being used
to see all setting were fine or not etc. things before sending to printing in corel x6.

1. where where that font is used and if it is power clipped as well i need to know that too