Hi @Piotr_Maslowski,
Others may have additional input but here are my thoughts…
I don’t think you’re going to be able to do it at no cost (aside from maybe the GDPR option, I don’t know anything about that).
Two ways I can think of to get all of your data out:
- Use a third-party backup tool, either on a free trial or subscribe for one month; there are a few of them but the one @Bastien_Siebman and I have worked with is ProBackup which can export to Excel.
- Upgrade your Asana to Enterprise+ for one month; the database dump you’re looking for is available in account settings but only at that subscription level (I know, please don’t shoot the messenger).
It could also be done via the Asana API but I’m guessing you’re not a developer and I don’t know of an existing script or program that does it via that mechanism.