i only ever send .pdf.
reason being: .pdf will always remain formatted. depending of format, word won't.
i think if they request ONLY a specific file type, it's because they are viewing your application through a software that only processes a certain file type.
2005 Imola Red 330Ci ZHP- SOLD
2006 Sebring Silver S2000- SOLD :(
2007 Silver Gray M Coupe- SOLD :'(