Why are the encrypted files in text format ?
Firewall software is increasingly suspicious of files containing binary data or files which may contain macros. Although text files are longer it is apparent under examination that they are not harmful and therefore will be much less likely to be rejected or quarantined by firewalls. Also you can see for your self that the data is completely scrambled. Zipping it proves that the data distribution is flat as it always zips to the same 38% (approx) which is the limit for random data.
