Merging Excel-XP numbers into Word-XP

I use Excel for detail accounting and have multiple merge reports in Word. I just got a new machine which came with Office XP. Now when I use the merge, my Word document doesn’t keep the number format from the Excel file. For example, if the calculated Excel number is 10,000.00 (in this exact format), Word shows it as 10000. Office 2000 didn’t do this. Also if the calculated Excel number is 9,638.24, Word shows it as 9638.2333343. Any help is greatly appreciated!