The key functions that generate files representing an Anaplan model based on an export of the module line items.

anaplan design to folder.cs

private static async Task ExportModelDesign(SqlConnection sqlConn, AnaplanApiClient client)
{
    // We do this here as we're doing it for each model in each workspace
    await foreach (var taskResult in client.ExportFileToSQL("ModuleLineItems.csv", (await client.GetExports()).Exports, (await client.GetFiles()).Files))
    {
        Console.Write($"\rExporting module line items to SQL. {taskResult.Task.Progress:P2} Step: {taskResult.Task.CurrentStep ?? "Exporting"}{new string(' ', Console.WindowWidth)}".Substring(0, Console.WindowWidth - 1));
    }
    Console.WriteLine();
    // Update the various columns in the line items that can be inherited from the module.
    await sqlConn.ExecuteAsync(@"UPDATE       ModuleLineItems
SET[Applies To] = ModuleLineItems_1.[Applies To]
FROM            AnaplanExport.dbo.ModuleLineItems INNER JOIN
                    AnaplanExport.dbo.ModuleLineItems AS ModuleLineItems_1 ON ModuleLineItems.[Module Name] = ModuleLineItems_1.[Line Item Name] AND ModuleLineItems_1.[Module Name] = ''
WHERE(ModuleLineItems.[Applies To] = '-')

UPDATE       ModuleLineItems
SET[Read Access Driver] = ModuleLineItems_1.[Read Access Driver]
FROM            AnaplanExport.dbo.ModuleLineItems INNER JOIN
                    AnaplanExport.dbo.ModuleLineItems AS ModuleLineItems_1 ON ModuleLineItems.[Module Name] = ModuleLineItems_1.[Line Item Name] AND ModuleLineItems_1.[Module Name] = ''
WHERE(ModuleLineItems.[Read Access Driver] = '-')

UPDATE       ModuleLineItems
SET[Write Access Driver] = ModuleLineItems_1.[Write Access Driver]
FROM            AnaplanExport.dbo.ModuleLineItems INNER JOIN
                    AnaplanExport.dbo.ModuleLineItems AS ModuleLineItems_1 ON ModuleLineItems.[Module Name] = ModuleLineItems_1.[Line Item Name] AND ModuleLineItems_1.[Module Name] = ''
WHERE(ModuleLineItems.[Write Access Driver] = '-')

UPDATE       ModuleLineItems
SET[Data Tags] = ModuleLineItems_1.[Data Tags]
FROM            AnaplanExport.dbo.ModuleLineItems INNER JOIN
                    AnaplanExport.dbo.ModuleLineItems AS ModuleLineItems_1 ON ModuleLineItems.[Module Name] = ModuleLineItems_1.[Line Item Name] AND ModuleLineItems_1.[Module Name] = ''
WHERE(ModuleLineItems.[Data Tags] = '-')");

    // Remove the line items that are just the modules themselves
    await sqlConn.ExecuteAsync("DELETE FROM AnaplanExport.dbo.ModuleLineItems WHERE([Module Name] = '')");
}

private static async Task GenerateFolderStructureFromModelDesign(SqlConnection sqlconn, string baseFolder)
{
    SqlMapper.SetTypeMap(typeof(ModuleLineItem), new CustomPropertyTypeMap(typeof(ModuleLineItem), (t, s) => { return t.GetProperty(s.Replace(" ", "")); }));

    Console.Write("Getting line items from SQL");
    var lineItems = (await sqlconn.QueryAsync<ModuleLineItem>("SELECT * FROM AnaplanExport.dbo.[ModuleLineItems]")).ToArray();

    Console.Write("\rGenerating files for module line Items.");
    var lineItemNumber = 1;
    foreach (var lineItem in lineItems)
    {
        Console.Write($"\r{new string(' ', Console.WindowWidth - 1)}");
        Console.Write($"\rProcessing {lineItemNumber++} of {lineItems.Length}: {lineItem.ModuleName}.{lineItem.LineItemName}");

        var moduleFolderName = Path.Combine(baseFolder, lineItem.ModuleName.Replace(Path.GetInvalidPathChars(), '_'));

        if (!Directory.Exists(moduleFolderName)) { Directory.CreateDirectory(moduleFolderName); }

        var lineItemObject = new ExpandoObject();

        foreach (var prop in typeof(ModuleLineItem).GetProperties())
        {
            var propValue = prop.GetValue(lineItem);
            object parsedObject = null;
            if (propValue is string propString)
            {
                if (!string.IsNullOrWhiteSpace(propString) && propString.Contains('{'))
                {
                    try
                    {
                        // TODO: Escape the string
                        parsedObject = JsonConvert.DeserializeObject(propString);
                    }
                    catch (Exception) { }
                }
            }

            if (parsedObject == null)
            {
                lineItemObject.TryAdd(prop.Name, propValue);
            }
            else
            {
                lineItemObject.TryAdd(prop.Name, parsedObject);
            }
        }

        // Don't need these as they're part of the file structure
        lineItemObject.Remove(nameof(lineItem.LineItemName), out _);
        lineItemObject.Remove(nameof(lineItem.ModuleName), out _);

        // Don't include the cell count, as that'll mean changes most days
        lineItemObject.Remove(nameof(lineItem.CellCount), out _);
        
        // Deal with the lineItemObject not having a consistant order when generating the json
        var serialisedLineItem = JsonUtility.ToNormalizedJsonString(lineItemObject, Formatting.Indented);

        await File.WriteAllTextAsync(Path.Combine(moduleFolderName, lineItem.LineItemName.Replace(Path.GetInvalidFileNameChars(), '_') + ".json"), serialisedLineItem);

        if (!string.IsNullOrEmpty(lineItem.Formula))
        {
            await File.WriteAllTextAsync(Path.Combine(moduleFolderName, lineItem.LineItemName.Replace(Path.GetInvalidFileNameChars(), '_') + " - formula.txt"), Anaplan.Formulas.FormulaPrettifier.Prettify(lineItem.Formula));
        }
    }
}