Reducing file size of Word while rendering

Hi
I am using SSRS 2005 to generate report and then I export it into Aspose word. Once rendering is complete then while opening this report it shows the files size of about 10MB-12MB. Once it opnes and I save it on my local machine it shows size as 1.5MB.
Can anybody tell me why there is so much size difference? Can I reduce file size? If yes then How?

Hi
Thanks for your request. As an option, you can consider using DOCX format as output format. This format seems to be the most compact from the range of office formats.
Best regards,