Producing the series of tags that result in a table within a post is very tedious: you have to create a tag pair for the table as a whole, a tag pair for each row in the table, and a tag pair for each cell within each row.
The macro Table2Lounge in the attached text file will convert a (simple) table in a Word document into the code needed for inclusion in a post.
You can copy the macro into a code module in Word; if you copy it into a module in your Normal template, it will be available in all posts.
To convert a table, click anywhere inside it, then run the macro (Alt+F8 displays the Macros dialog in all versions of Word).
Here is a screenshot of a table in a Word document:
Clicking inside it (in Word) and running the Table2Lounge macro places the following code on the clipboard, ready to be pasted into a post:
When posted, this results in:
Warning: if your table contains merged cells, you'll get an error message. The macro was not intended to handle merged cells, since the table tags in the Lounge don't support them.