You can do anything with them, but DON'T change their MEANING.                  
See .readme file in the archive for details.                                    

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                25387   57914  43.8% -lh5- 0bcb Aug 15  1991 SmashRascism.anim
[generic]                  438    1271  34.5% -lh5- 18eb Jul 16  1980 SmashRascism.anim.info
[generic]                  447     729  61.3% -lh5- fff5 Jul 16  1980 SmashRascism.readme
[generic]                16224   46862  34.6% -lh5- 4bb4 Jul 16  1980 SmashRascism2.anim
[generic]                  234     592  39.5% -lh5- 55d8 Jul 16  1980 SmashRascism2.anim.info
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         5 files   42730  107368  39.8%            Jan  5  1995