How can I share information/variables from workspace to an editor (+ GUI)?

Hey, I opened a text file using the import wizard in Matlab, so the data is saved under the variable data (but just in the workspace).

I can open data in the Command Window. This is how it looks like:

>> data

data =

Columns 1 through 7

           1           1           1           2          67      (and so on)

I have an editor with a gui code and the evaluation but as I read on other internet pages you can t share informations between different workspaces (I believe you can, otherwise it wouldn t be discussed)

So what I want to ask is how do I get the variable "data" into the evaluation editor? It always says

??? Undefined function or variable 'data'.

Thanks