Cloud Compare https://www.danielgm.net/cc/ https://www.danielgm.net/cc/ It's a point cloud editor, bit of a learning curve, but imports and exports wide range o

Cloud Compare https://www.danielgm.net/cc/ https://www.danielgm.net/cc/ It's a point cloud editor, bit of a learning curve, but imports and exports wide range of formats, and will work fast on huge files.