Useful command-line "tab-to-space" and "space-to-tab" expansion utility.
Several command-line options to specify size/settings and the ability to
protect material enclosed by delimiters (quotes, brackets, carats, etc.)
from expansion.  

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                  300     974  30.8% -lh5- 4c14 Oct 23  1990 Retab.info
[generic]                   26      26 100.0% -lh0- b76c Oct 23  1990 Retab/.info
[generic]                  122     145  84.1% -lh5- cf6c Oct 23  1990 Retab/Readme.fnf
[generic]                11787   21464  54.9% -lh5- 44d9 Oct 23  1990 Retab/retab
[generic]                 7896   29517  26.8% -lh5- 8049 Oct 23  1990 Retab/retab.doc
[generic]                  446    2570  17.4% -lh5- 37b7 Oct 23  1990 Retab/Retab.doc.info
[generic]                 7149   20391  35.1% -lh5- d925 Oct 23  1990 Retab/retab.wpf
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         7 files   27726   75087  36.9%            Oct 23  1990