IN PURCHASING FILES FROM SAY RENDEROSITY & DAZ i HAVE COME ACROSS THINGS LIKE 42110 FILES…ARE THESE OK AND WHAT FUNCTION DO THEY SERVE IN THE FILES???..ARE THEY HARMFUL TO MY COMP AND IF SO WHY PUT THEM IN???
If you are unsure about files, you can try uploading to VirusTotal (https://www.virustotal.com/) to see if any antiviruses detect them as malicious.
IN PURCHASING FILES FROM SAY RENDEROSITY & DAZ i HAVE COME ACROSS THINGS LIKE 42110 FILESyou mean avast detect them as "decompression bombs" ?
quote Igor
- decompression bomb is just something that unpacks to an unusually big amount of data even though it's rather small (i.e. has a high compression ratio, for example). It's nothing to worry about, you are just informed that avast! will not try to unpack the archive (you may not even know that it's an archive, but it seems like it is) because it may take VERY long to process.http://forum.avast.com/index.php?topic=15389.msg131213#msg131213
Email Etiquette Tip - DON’T SHOUT! 
If you USE ALL CAPS in your email or message board posts, you will immediately make yourself seem inexperienced or ignorant. Most experienced computer users consider the use of all capital letters to be the Internet equivalent of shouting.http://www.hoax-slayer.com/do-not-use-all-capitals.html