thank you for providing me with information about the Excel Unit, it is actually a better approach than using an external library (I took it into consideration because it is already used in one of our custom units).
Now I'm wondering whether:
1) The Excel Unit (WebRatio 5.1.x) supports the protection of cell / cell ranges
2) What is the correct syntax to set both the background/foreground cell color to white. I guess that I have to specify the "Value Style" of the specific Cell Info based on the parameters available in Excel.attr.template. Something like: cellbackground:white, cellcolor:white, but I'm not sure if that's the correct way of doing it.