I came across a very useful ado file for Stata named asdoc that facilitates the creation of neat tables.
To install asdoc, just type ssc install asdoc .
Here is an example of exporting a correlation table to a document named table.doc.
sysuse auto
asdoc correl price mpg headroom trunk weight, save(table.doc) dec(3)
Note that dec(3) means to export the correlations with 3 decimal places.
Asdoc has tons of other applications. Its help file is very comprehensive. And you can have a glimpse of its capabilities in the following videos: