Linux:
home
mkdir SAChatBar-0.1.6,
cd SAChatBar-0.1.6, unzip *
make your changes
eg. zip -r ../SAChatBar-0.1.6.zip *
Windows:
WINSCP download
unzip the downloaded Host OS Linux files using 7zip into a folder
and then rezip the discreet files all as one back into a zip file and that changes the Host OS to FAT.