problems with write to spreadsheet vi

[Kevin]

i'm having problems setting up the express vi for write to
spreadsheet. I'm trying to write data to an excel spreadsheet. I'm
getting and error

Error 1 occured at Open File
Possible reason(s):

LabVIEW: An input parameter is invalid.
---
NI-488: Command requires GPIB Controller to be Controller in Charge.

i think that my problem is that i haven't defined the file to write to
properly.
If anyone can help i'd be extremely grateful. I'm new to LabView and
this has stumped me.

Sincerely Kevin

[Shan]

If you leave the file path unwired you should get a file dialog prompt, asking you for the file / path. Try disconnecting anything connected to the file path terminal.

Also, you are aware that "Write to spreadsheet.vi" writes a text file that is easily imported into a spreadsheet (like Excel) - right? It does not write it into an xls file. To do this you'll need to use ActiveX components of Excel. It's a bit advanced, but there's a bunch of discussions with sample code on the forum.

If you're still having problems, post your code and give some more details.
Tim