Under Module Parameters for the feed, set RTL Feed to No.

RTL means "Right to Left" and so you want to check NO so you get Left to Right.

Cheers.  

I am using the basic Feed module that comes with Joomla.

Go to Extensions>Modules and select " -Select-Type - " pull down.  Choose "mod_feed".

Select the feed you want to change.

Change the RTL parameter.

Here is a screen shot:

http://farm5.static.flickr.com/4080/4821082830_4234b53e3c_b.jpg

If you are using mod_rssfactory  than you are using a different feed module than mod_feed. 

Not much more to say.  If you use mod_feed, you willhave the RTL parameter. 

If you use mod_rssfactory, you have what they wrote.