Math Easy Solutions, the cleanest way is to use GeoGebra’s copy/duplicate flow instead of plain Save: open the menu and choose Make a Copy for a new online version, or Download as .ggb if you want a separate local file; plain Save just overwrites the current one. GeoGebra’s own materials show the copy workflow in Copy & Edit Existing Resources and the file options in the File Menu manual. Funnily enough, your own GeoGebra-heavy post proves you’re already deep in the graphing trenches: your trefoil knot post.