Word Table to Excel

Word tables and Excel tables are not the same so Excel does its best to do something sensible when it sees differences. In particular what is giving you trouble is that you have paragraph marks in your Word table. (If you do not have them visible, go in the Ribbon to Home > Paragraph and click the little ¶ icon to see them in your table.) Excel thinks that means they should be separate cells, so you get this weird mish-mash of merged cells.

To fix this for export, replace the paragraph marks with a different character, then change it back in Excel.

In Word:

Home > Editing > Replace
Find What: click Special and select paragraph mark. You should see ^p appear in the box
Replace With: ###

The ### is just arbitrary. You can use any string that does not otherwise appear anywhere in your document.

Copy table
Paste into in Excel

In Excel:

Home > Editing > Find and Select > Replace

Find What: ###
Replace with: Hold down the ALT key and type 010

Now Replace All