Whenever you choose to embed an excel sheet into Microsoft Word, Microsoft Word shows them in the Word Document as graphics objects by default. The result is that sometimes, when the contents of the Excel Sheet exceed one page in Word, they are not displayed.
To make them appear correctly in the Word document, you need to change the field code where you embedded the Excel object in the Word document for the object from:
f 0 /p
f 5 /r
The f 5 /r tells Microsoft Word to show the embedded Excel object as text.
When this is done, the excel file shows in full spanning across as many pages as necessary. In fact, your word document file size too is much smaller, as the excel object is treated as text and not as an image.