Ah great! Thank you!

Have been chasing down an annoying bug where our test servers generated corrupt Xlsx-reports. It turns out that when I run JSReport locally with "node server.js", having a node 16 environment will give me a corrupt Xlsx report while running exactly the same report but with node 14 or 15 will produce correct results.

I tried with a minimal report with an empty template and only outputting a string into the Excel report with the same outcome.

(the server instance was running a node:16-alpine image, downgrading to a node:14-alpine image solved it)

Edit: Locally I'm running Windows 10 so the OS itself does not seem to matter.