You actually have two options. Microsoft actually has an excel viewer. I did a quick google search and here's a link to the 2003 viewer: http://www.microsoft.com/downloads/details.aspx?FamilyID=c8378bf4-996c-4569-b547-75edbd03aaf0&displaylang=EN
Also, here's one for 2007: http://www.microsoft.com/downloads/details.aspx?FamilyID=1cd6acf9-ce06-4e1c-8dcf-f33f669dbc3a&DisplayLang=en
Another option is open office (www.openoffice.org). This is open source software (read: free) and will let you modify, save, and open any Microsoft document.
Huy -- there's always a free version of what you're looking for somewhere. That's the beauty of the interwebs.
Answers & Comments
Pay for software? I say no!
You actually have two options. Microsoft actually has an excel viewer. I did a quick google search and here's a link to the 2003 viewer: http://www.microsoft.com/downloads/details.aspx?FamilyID=c8378bf4-996c-4569-b547-75edbd03aaf0&displaylang=EN
Also, here's one for 2007: http://www.microsoft.com/downloads/details.aspx?FamilyID=1cd6acf9-ce06-4e1c-8dcf-f33f669dbc3a&DisplayLang=en
Another option is open office (www.openoffice.org). This is open source software (read: free) and will let you modify, save, and open any Microsoft document.
Huy -- there's always a free version of what you're looking for somewhere. That's the beauty of the interwebs.