Here's what we do to generate a report to a network drive:

Write csv header:

namespace WorkflowActivity.Scripting.Writecsvheader
{
    using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Data.SqlClient;
    using System.Text;
    using Laserfiche.RepositoryAccess;

    /// <summary>
    /// Provides one or more methods that can be run when the workflow scripting activity is performed.
    /// </summary>
    public class Script1 : RAScriptClass92
    {
        /// <summary>
        /// This method is run when the activity is performed.
        /// </summary>
        protected override void Execute()
        {
            // set a path to write to. run the workflow on a schedule and overwrite the file

            string fpath = System.IO.Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData),@"LaserficheReports\\WFReports\\");
                //  This path converts to C:\ProgramData\LaserficheReports\WFReports\CSEL
            if(!System.IO.Directory.Exists(fpath))
                System.IO.Directory.CreateDirectory(fpath);
            fpath = System.IO.Path.Combine(fpath, "CSELReport.csv");

            // create a token or update one if you added an Assign Tokens activity
            SetTokenValue("csvpath", fpath);

            // best to use full csv unless you are absolutely certain that the values will not have any special characters like comma and double quotes

            System.IO.File.WriteAllText(fpath, "\"Entry ID\",\"Status\",\"Doc ID\",\"Document #\",\"Revision\",\"Vendor Document #\",\"Software Code\",\"Document Date\",\"Date Last Updated\",\"Notes\"" + Environment.NewLine);

            // done with file prep

        }
    }
}

Write each document to file:

namespace WorkflowActivity.Scripting.Writeeachdocumenttofile
{
    using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Data.SqlClient;
    using System.Text;
    using Laserfiche.RepositoryAccess;

    /// <summary>
    /// Provides one or more methods that can be run when the workflow scripting activity is performed.
    /// </summary>
    public class Script1 : RAScriptClass92
    {
        /// <summary>
        /// This method is run when the activity is performed.
        /// </summary>
        protected override void Execute()
        {
            // generate the line with full csv
            string s = "\"" + GetTokenValue("ForEachEntry_CurrentEntry_ID") + "\"";
            s += ",\"" + FixValue(GetTokenValue("ForEachEntry_CurrentEntry_Status")) + "\"";
            s += ",\"" + FixValue(GetTokenValue("ForEachEntry_CurrentEntry_Doc ID")) + "\"";
            s += ",\"" + FixValue(GetTokenValue("ForEachEntry_CurrentEntry_Document #")) + "\"";
            s += ",\"'" + FixValue(GetTokenValue("ForEachEntry_CurrentEntry_Revision")) + "\"";
            s += ",\"" + FixValue(GetTokenValue("ForEachEntry_CurrentEntry_Vendor Document #")) + "\"";
            s += ",\"" + FixValue(GetTokenValue("ForEachEntry_CurrentEntry_Software Code_1")) + "\"";
            s += ",\"" + FixValue(GetTokenValue("ForEachEntry_CurrentEntry_Document Date")) + "\"";
            s += ",\"" + FixValue(GetTokenValue("ForEachEntry_CurrentEntry_LastModifiedDate")) + "\"";
            s += ",\"" + FixValue(GetTokenValue("ForEachEntry_CurrentEntry_Notes")) + "\"";

            System.IO.File.AppendAllText(GetTokenValue("csvpath").ToString(), s + Environment.NewLine);
        }

        private string FixValue(object o)
        {
            if(o == null)
                return "";
            else
                return o.ToString().Replace("\"", "\"\""); // make sure properly escaped
        }
    }
}

Write csv file to network drive:

namespace WorkflowActivity.Scripting.Writecsvfiletonetworkdrive
{
    using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Data.SqlClient;
    using System.Text;
    using Laserfiche.RepositoryAccess;

    /// <summary>
    /// Provides one or more methods that can be run when the workflow scripting activity is performed.
    /// </summary>
    public class Script1 : RAScriptClass92
    {
        /// <summary>
        /// This method is run when the activity is performed.
        /// </summary>
        protected override void Execute()
        {
            // overwriting existing file with same name
            System.IO.File.Copy(GetTokenValue("csvpath").ToString(), @"\\[YourNetworkDrive]\Design Engineering Dashboard data\CSELReport.csv", true);
        }
    }
}