To access it, click on this link:

https://docs.google.com/spreadsheets/d/1GHORjRoQ1DNTWG2wVFpVuMoiDnYQaKKiIEMkxYdCS7Y/edit#gid=536179017

You're free to make a copy of it and edit it to your heart's content! =D
Just please remember to give credit.

Quick overview of this sheet:

1st Tab: Specialization Roster

• A simple roster with all possible classes and advanced classes. Originally I used it to track which advanced class I was still missing, when I was creating my army of alts. haha
  
• It can still be useful as a quick reminder to which class is the mirror of which.

2nd Tab: SoW: Sets and Tacticals

• The main event of this spreadsheet. Here I've written all Armor Sets and Tacticals, I use it to track which ones I have and with which characters they are. With the introduction of Expansion 6.0, BioWare implemented a truck load of equipment sets, some are class specific while some are "universal" as I call it, and can be used by any class. So, to avoid confusion, buying the same piece twice because I forgot I already had it and to keep tracking the achievements a bit easier, I created this sheet.
  
• Hopefully it will serve you as well as it serves me.

3rd Tab: Crafting Sheet

• This tab helps show which Crew Skill crafts what. Basically. Also, some tacticals can only be obtained via crafting. Nothing super special, but, still helps me when I need to remember who crafts which augment.

4th Tab: GSI Treasure Hunting

• A bonus sheet, I used it to help with the treasure hunting when the GSI update hit. Mostly for achievements like get all speeder parts and the 2 armor sets (cosmetic only) tied to it. I figured if it was helpful to me it would be helpful to someone else as well.

Well, I had a lot of fun creating this spreadsheet, hopefully it'll be useful to you as well! =)