Numbers document converted to Excel gone wrong!

Hello all

I am a grade 9 student currently trying to figure out how to convert my Numbers documents so that my teacher who does't use Mac can open them. I know how to convert them to a Excel document which enable my teacher to look at the document but when I convert the document from a Numbers document to Excel document it is not the same. Why can't the document stay the same? When I convert a pages document to a word document it stays the same so I don't know what is going on. Here are some screenshots.

Here is the Numbers version.




Now here it is when it has been converted to a excel. Totally different



Whats going on? Please help.

Sorry the Numbers version picture didn't work. Here it is.

If you have an Intel Mac, your thread does not say, see if the oldies will spring for Office 2011 which is fully compatible with the Windows version. Most teachers you will find are pretty insistent about submitting work in Office format.