saving gif file
===

I want to save a gif file driven from an internet address.
when I request the file (also in browser),I have received these characters

    GIF87a½€ÿÿÿ,½þ„©Ëí£œ´Ú‹³Þ¼û†âH–æ‰Ádk
    ÇòòµuÏú>æùôãEX¯–Š¨²µ‚‰"<}O)Ò¨¬:kÜ'Õª]þ¢`ìc
    ­Ú”ìvöhe;Ï]¸;oßÂyþ|Þ‡µe§'hÄÔdhW÷§H#&gö¨ð…G™Gy(‰	x÷j†øyÙˆI8uJZZiª
    ™ªÚº¹i	{ç‰Zj™ˆwšµ7
    ©;é›9Æy¤VÄ$ú;œË›ÙÛI¬,œ=}|,l¼ÛË§¸ìæ%]h~n»8»ÌíIv—Fe6¿‹¸®0YÉ
    J7k8”•pÕá C¬4Èráâ;zü2¤È‘$Kš

can I retrieve gif format with these characters?