WowCardioRaid is an offline standalone parser for analyzing the wow combat log output.
It's not an Addon, but a full external application. So, *do not* use CurseClient to get it, because this tool has nothing to do in the wow addon folder.

A youtube video can be found here for a better preview:
http://www.youtube.com/watch?v=RwNBweEwDIY

And a full manual made by Darkbubbles (Garithos-US) is available here:
http://tixu.scribe.free.fr/wcr/WCR_Manual.pdf

This tool supports LiveUpdate and realtime parsing.

-launch the program
-load a WowCombatlog.txt file. Logs are located in the .\logs repertory of World of warcraft. (WCR supports live log parsing)
-watch and analyse the log in the graphic viewport throught multiple filters systems
-You can Zoom and dezoom on the timeline, select time period, select spell or event. It basically shows everything
-You can see a stats breakdown for the selected period of time.

It only works on windows. Sources are not currently included.
If the last version does'nt show up on curse, it can be found on the main site of wowcardioraid: http://tixu.scribe.free.fr

NB: Beta14 doesnt handle wow3.1+ format, but it's the last wow cardio version that supports pre-wow3.0 format logs.