How to view .xlsx, .docx in word 2003

Microsoft provides a patch to view the higher version(xml format) files.

FileFormatConverters

if link not worked please copy and paste the below  link in url

http://www.microsoft.com/downloads/en/confirmation.aspx?FamilyId=941B3470-3AE9-4AEE-8F43-C6BB74CD1466&displaylang=en

Viewer also available to view .doc,.docx,.xls,.xlsx,.ppt,.pptx in Microsoft site. Viewer are just use to view the document. We cant edit anything in the document. Viewer are mostly used in the situation of ms office is not installed/not available

word viewer – http://www.microsoft.com/downloads/en/confirmation.aspx?FamilyID=3657ce88-7cfa-457a-9aec-f4f827f20cac&displaylang=en

excel viewer – http://www.microsoft.com/downloads/en/confirmation.aspx?familyid=1cd6acf9-ce06-4e1c-8dcf-f33f669dbc3a&displaylang=en

PowerPoint viewer – http://www.microsoft.com/downloads/en/confirmation.aspx?FamilyID=048dc840-14e1-467d-8dca-19d2a8fd7485&displaylang=en