> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ntop.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Why are there errors when exporting a Mesh from Voxel Grid as a 3MF?

## Issue:

Some workflows require the **Mesh from Voxel Grid** block, and users may want to export the results to 3MF. The resulting 3MF file displays incorrectly after importing to third-party applications.

## Applies to:

* nTop
* Exporting

## Cause:

3MF file formats support only triangle polygons, whereas voxel grids produce quadrangle mesh elements.

## Solution:

Use the **Remesh Surface** block to convert the quadrangles to triangles, creating geometry compatible with 3MF.

## Keywords:

*import mesh export 3mf remesh voxel*