I think I’ve found a calculation bug in Aspose.Cells for Python via Java 26.9.0. I get the same result on macOS arm64 and Linux x86_64, with Java 21.
When INDEX gets a single index on a one-row array, Excel returns that…...show(v: object) -> str: """Render a value, including Java arrays...def show(v: object) → str: “”"Render a value, including Java arrays...