FROM…
Joe Smith
ABC Company
123 Main Street
Anywere, USA 11111
(555) 555-5555

Mary Jones
CDE Company
55 Elm Street
Somewhere, USA 22222
(444) 444-4444

TO…
Joe Smith              ABC Company          123 Main Street         Anywere, USA 11111                   (555) 555-5555
Mary Jones           CDE Company             55 Elm Street             Somewhere, USA 22222             (444) 444-4444

^l = line break
^p = paragraph break
^t = tab break


STEP 1. Replace paragraph breaks with line breaks
Find ^p and replace with ^l.

STEP 2. Replace double line breaks with paragraph breaks
Find ^l^l (two line breaks) and replace with ^p.
This will give you each address block in a single paragraph.

STEP 3. Replace line breaks with tab breaks
Find ^l and replace with ^t (tab character).
This will give you each address 
block in a long line.

STEP 4. Select all your text and use Table | Convert | Text to Table to create a table, separating at tabs.

REFERENCES\LINKS:
http://www.pcreview.co.uk/forums/converting-address-list-word-excel-spreadsheet-t2576151.html