Hi,
- why did you save your entire database as zip? As ILCD or JSON-LD? Or you zipped the database folder?
- why don't you use a newer version of openLCA? It is as if using an older Chrome browser version for some reason?
- if you do not remember the file format inside the zip any more, you can extract it, JSON and ILCD have a characteristic folder structure inside.
Best wishes,
Andreas