Hi, this could be linked to Mac, try to download not using Safari, we are providing the database in zolca format.
edit, to add a screenshot:
![](https://ask.openlca.org/?qa=blob&qa_blobid=11174893228814534589)
here you see, from the nexus site, that the database is provided in zolca format. As said, it is possible that Safari / Mac tries to help users by zippingor unzipping it somehow, therefore please use a different browser.