The whole document, losing nothing — every recipe, parent, parameter and feature, exactly what a reload already brings back. This is the one to hand to someone else. Opening it replaces the document rather than importing into it — it asks first, and offers to save what is open before it does.

Tessellates Surfaces/Solids to triangles. Loses exact NURBS curve/surface data, live history, and Point/Line/PolySurface structure. Good for 3D printing or another mesh app.

Keeps exact rational curves/surfaces, units=mm. A trimmed surface exports as its untrimmed base; live history links stay here, never in the file. Opens correctly in Rhino 8.

The scene as Rendre opens it: every visible surface as triangles, the material each one wears, the floor, the environment and the view you are looking from. Curves and points carry no surface, so they are not in it. Sizes are normalized the way Rendre normalises an import, with the real millimetres recorded alongside — nothing is lost, but the numbers in the file are not millimetres.

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Writes what is open now to its own .unreason file, losing nothing. The file you picked stays held here while you do it, so this panel is still waiting afterwards.

Replace clears this document and rebuilds the file's own objects from their recipes. Undo does not cross that line — the history is the opened document's from then on.

Nothing here matches that.

Nothing here matches that.