diff --git a/DATabase/DATabase.cs b/DATabase/DATabase.cs
index d970696b..77be777d 100644
--- a/DATabase/DATabase.cs
+++ b/DATabase/DATabase.cs
@@ -316,6 +316,13 @@ namespace SabreTools
 			}
 
 			// Split a DAT by extension
+			else if (extsplit)
+			{
+				foreach (string input in inputs)
+				{
+					InitExtSplit(input, exta, extb, outdir);
+				}
+			}
 
 			logger.Close();
 			return;
@@ -950,10 +957,10 @@ Make a selection:
 		/// <summary>
 		/// Wrap splitting a DAT by 2 extensions
 		/// </summary>
-		/// <param name="input">Input file or folder to be converted</param>
-		/// <param name="exta">Root directory to base path lengths on</param>
-		/// <param name="rename">True is games should not be renamed</param>
-		/// <param name="force">True if forcepacking="unzip" should be included</param>
+		/// <param name="input">Input file or folder to be split</param>
+		/// <param name="exta">First extension to split on</param>
+		/// <param name="extb">Second extension to split on</param>
+		/// <param name="outdir">Output directory for the split files</param>
 		private static void InitExtSplit(string input, string exta, string extb, string outdir)
 		{
 			// Strip any quotations from the names
@@ -966,7 +973,7 @@ Make a selection:
 			{
 				if (exta == "" || extb == "")
 				{
-					logger.Warning("Two extension are needed to split a DAT!");
+					logger.Warning("Two extensions are needed to split a DAT!");
 					return;
 				}
 				ExtSplit es = new ExtSplit(input, exta, extb, outdir, logger);
diff --git a/README.MD b/README.MD
index 8921cf41..98588472 100644
--- a/README.MD
+++ b/README.MD
@@ -22,6 +22,7 @@ The main tool of the SabreTools suite. Performs the majority of the core feature
 	<li>Importing and Generating DAT files in RomVault and XML formats</li>
 	<li>Converting DATs from RomVault to XML format</li>
 	<li>Trim DAT entries and optionally merge into a single game (formerly <i>SingleGame</i>; requested by Kludge)</li>
+	<li>Split a DAT using two different file extensions within the DAT (formerly <i>DatSplit</i>)</li>
 	<li>Add and remove sources and systems from the database</li>
 	<li>Retrieve a list of all sources and systems that are available</li>
 </ul>
diff --git a/SabreHelper/Build.cs b/SabreHelper/Build.cs
index 345216f0..059faf95 100644
--- a/SabreHelper/Build.cs
+++ b/SabreHelper/Build.cs
@@ -85,11 +85,12 @@ Options:
   -es, --ext-split		Split a DAT by two file extensions
 	exta=			First extension to split by
 	extb=			Second extension to split by
+	out=			Output directory
   -g, --generate	Start tool in generate mode
   -ga, --generate-all	Start tool in generate all mode
 	system=			Comma-separated list of system IDs
 	source=			Comma-separated list of source IDs
-	out=			Output directoryComma-separated list
+	out=			Output directory
 	-nr, --no-rename	Don't auto-rename games
 	-old, --romvault	Produce a DAT in RV format
   -i, --import		Start tool in import mode