Scribe->Excel: "Writing values is not supported for the file…"

[Juanjo]

Hi all.

I'm trying to write a value in an Excel document cell with Scribe.

The document is loaded, but when writing I get the following error: "Writing values is not supported for the file B3" (B3 is obviously the cell where I try to write).

The file has write permissions and I run the script with full permissions.

¿?

[Juanjo]

Newbie mistake.

The Excel file format must be xlsx.