Hi,
This all assumes that your system is fairly up to date - i.e Windows 7 or 8 or MAC OS X v10.8 or higher.
The T5 is also supported by PSE 12 plus updates in case you don't like PSE 13.
An alternative is to download the free Adobe DNG Converter. You copy your T5 raw files to a folder and use the converter to convert them to DNG files which is Adobe's universal raw format. The DNG files can then be used in PSE 11.
DNG Converter 8.7
Mac – http://www.adobe.com/support/downloads/detail.jsp?ftpID=5858
Win – http://www.adobe.com/support/downloads/detail.jsp?ftpID=5864
For a DNG tutorial see
Camera Raw: How to use Adobe DNG Converter - YouTube
The other alternative is to use the Canon software (DPP) to convert the raw files to TIF files which can then be used by PSE 11
Good luck
Brian