#NAME? Error with Excel 2013

Hello Excel Forum community,

I'm experiencing a difficulty within Excel 2014, it's really bothering me and I'd like your help on fixing this.

I made a spreadsheet for a game called EVE Online which allows me to view current market prices and with that calculate my profit made per item. I don't think I have to go into details on this, because it's all pretty obvious. The thing is, I made it on Google Docs and it works there. When I tried to import it so that I could use it with Excel 2014 (to remove the limited amount of XML imports) it gave me the #NAME? Error.

The Google Doc version is here:
https://docs.google.com/spreadsheet/...rive_web#gid=0

I use the command "=ImportXML(CONCATENATE(Sell_Swap,TypeID&JOIN(TypeID,$C3:$C26)), "//sell/min")" to calculate the sell price (and the buy price is the exact same, instead "//buy/max" at the end.

When I try the EXACT same thing in Excel 2014, it spits out the #NAME? error.

Is there anyone that can help me with this issue?

Yours sincerely,

Floris.


EDIT:

Thank you for all your replies and input. I have now added the workbook to this post. (Named "Market").
If you look at the bottom of the excel sheet at the "Ferox" line, you see a simpler version of the formula that I was trying to accomplish. The formula at the bottom correctly retrieves the information I need.
The formula at the top doesn't do what I want, and I can't understand what.

What the top formula should be able to do is as follows:

Depending on what the current swap group is (Jita Sell/Amarr Sell/Dodixie Sell/Rens sell) it should retrieve different information that you can see in the "Math" tab.
It should put together the TypeID with the url (that you can see in the bottom formula). I hope I've made this clear enough.

Anyone that can solve this riddle?