# FAQs

## What is a .cloud file?

A .cloud file is a proprietary intermediate format for storing LiDAR data while processing. It enables fast access to the point cloud, allowing for calibration, quality control, and filtering without having to replay the data each time. This format is optimized for SSD.

## Can I Export to LAS without creating a .cloud file?

Currently in SpatialExplorer 6, you must first create a .cloud file to export a .las file.

## What is the recommended downward FOV?

We recommend limiting FOV to around 90 degrees. A value of 90 degrees will display/fuse the point cloud with 45 degrees on each side of nadir, which is directly perpendicular to the ground. In general, higher angle and further from nadir points are less accurate as the range is stretched.

This parameter can be adjusted in the Processing tab of the LDR settings.

## What is LiDARSnap?

LiDARSnap is an advanced automated point cloud calibration tool with individual scanner corrections for fast, accurate point cloud creation. LiDARSnap works by comparing geometric observations made across overlapping flight lines. The primary function is to improve systematic alignment parameters and optimize flight line position/orientation to minimize offsets.

{% hint style="info" %}
&#x20;LiDARSnap is one of many advanced features available in SpatialExplorer Pro only. Visit [Our Website](https://www.phoenixlidar.com/software/) for more information on the various tiers of Spatial Explorer that are available for purchase. Please contact our sales team at <sales@phoenixlidar.com> for additional information on pricing.
{% endhint %}

## Can I use a newer version of SpatialExplorer to connect to a rover with a previous version of SpatialRover installed?

SpatialExplorer and the rover’s SpatialRover must be on the same version to take advantage of all the newer features supported by the latest version of SpatialExplorer. We do NOT recommend using an outdated version of SpatialExplorer to connect to a more recent version of SpatialRover; if you decide to do so, be aware that Phoenix LiDAR Systems will NOT provide support. Instead, when the latest version of SpatialExplorer connects to a rover with a different version of SpatialRover, it will offer to update the rover’s SpatialRover to the same version. This will allow you to use all the new features included in the latest version of SpatialExplorer with the rover.

## Is there any restriction on accessing the software through remote login?

There are restrictions on using OpenGL and Windows Remote Desktop. This is not a SpatialExplorer restriction. Normal GeForce drivers will not load in a Windows Remote Desktop session.

If you have to work remotely and require using the GPU, we would recommend TeamViewer or VNC. They will simply remote control the local interactive session rather than work in a remote session, so that everything will work just like it would if you were sitting in front of the machine.


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