How can I fill (not replace) TAB with Spaces in MSWord?

Question

How can I fill (not replace) TAB with Spaces in MS Office Word? In other word, have a look at the following pic:

1   ->  222   ->  3
111 ->  2     ->  333
11  ->  22    ->  33
11  ->  2222  ->  3333

Suppose that -> is indicated one TAB. As you see, each column is justified from left. I need to fill each TAB with Spaces, so that the justification not be confused. If I use 'Find & Replace' option to change each TABs to a specific number of Spaces, justification will be confused because each column have its own character number. In other word, if I change each TAB with 6 Spaces, the above will be changed to the follow:

1      222      3
111      2      333
11      22      33
11      2222      3333

My need is as follow (each dot indicate a Space):

1......222......3
111....2........333
11.....22.......33
11.....2222.....3333