Export your artwork in Dottie on Mac

Columns: how many cells per row (0 = automatic).
Scale: 1×, 2×, 3×, 4×, 6×, or 8× nearest-neighbour enlargement.
Grid lines: draw dividing lines between cells.

Exporting produces a flat image from the visible layers; your .dottie document keeps its layers.

Export a single image

Format	Notes
PNG	Lossless with transparency. The default choice.
BMP, TIFF	Standard flattened bitmap formats.
GIF, APNG	Animated when the document has more than one frame—every frame is written using its timing. A single frame exports as a still image.
SVG	Vector output with one rectangle per pixel, grouped per layer with layer opacity—scales to any size without blurring.
XPM	Text-based X PixMap, handy for source code embedding.
ICO	Windows icon—wraps the image as an icon (canvas must be 256×256 or smaller).
PICO-8 (`.p8`)	Exports the sprite sheet into a PICO-8 cartridge's `__gfx__` section using the PICO-8 16-colour palette. The canvas is exported into a 128×128 grid—larger canvases are cropped to the top-left 128×128, smaller ones are padded with transparency.

Choose File > Export as Sheet Shift+Command+E to lay every layer out on a single PNG grid. The save panel offers:

The suggested filename ends in -table-<width>-<height>, so importing the sheet later restores each cell to its own layer.