A quick script to export all vorto values

Umbraco.ExportVortoValue.cs

var allNodes = UmbracoContext.ContentCache
    .GetByXPath("//*[@isDoc]");
var nodesVortoValuePairs = allNodes
    .SelectMany(n => n.Properties
        .Where(p => p.Value is Our.Umbraco.Vorto.Models.VortoValue)
        .Select(p => new { Node = n, Property = p }));
var vortoValuesExport = nodesVortoValuePairs
    .Select(a =>
    {
        var vortoValue =
            a.Property.Value as Our.Umbraco.Vorto.Models.VortoValue;
        var containsKey = vortoValue?.Values?.ContainsKey("en-US");
        var translatedPropertyValue = (containsKey != null && containsKey == true)
            ? vortoValue.Values["en-US"]
            : null;
        return new
        {
            NodeId = a.Node.Id,
            NodeName = a.Node.Name,
            NodeUrl = a.Node.Url,
            PropertyAlias = a.Property.PropertyTypeAlias,
            PropertyUsValue = translatedPropertyValue
        };
    })
.ToList();

var vortoValueJsonExport = JsonConvert.SerializeObject(vortoValuesExport);