diff --git a/src/XlsxCompare.Tests/MatchByTests.cs b/src/XlsxCompare.Tests/MatchByTests.cs
index 7dfb1b5..78fc252 100644
--- a/src/XlsxCompare.Tests/MatchByTests.cs
+++ b/src/XlsxCompare.Tests/MatchByTests.cs
@@ -19,6 +19,7 @@ public class MatchByTests
         [DataRow(MatchBy.StringLeftStartsWithRight, "asdf", "as")]
         [DataRow(MatchBy.Decimal, "0.084400", "0.0844")]
         [DataRow(MatchBy.Decimal, "0.00", "0")]
+        [DataRow(MatchBy.StringRightStartsWithLeft, "asdf", "asdf and then some")]
         public void IsMatch_ThingsThatMatch_ReturnsTrue(MatchBy? match, string left, string right)
         {
             Assert.IsTrue(match.IsMatch(left, right));
@@ -34,6 +35,8 @@ public void IsMatch_ThingsThatMatch_ReturnsTrue(MatchBy? match, string left, str
         [DataRow(MatchBy.StringLeftStartsWithRight, "as", "asdf")]
         [DataRow(MatchBy.StringLeftStartsWithRight, "asdf", "")]
         [DataRow(MatchBy.Decimal, "0.084400", "0.0845")]
+        [DataRow(MatchBy.StringRightStartsWithLeft, "", "asdf and then some")]
+        [DataRow(MatchBy.StringRightStartsWithLeft, "asdf but no", "asdf and then some")]
         public void IsMatch_ThingsThatDoNotMatch_ReturnsFalse(MatchBy? match, string left, string right)
         {
             Assert.IsFalse(match.IsMatch(left, right));
diff --git a/src/XlsxCompare/MatchBy.cs b/src/XlsxCompare/MatchBy.cs
index 94b933e..38dc960 100644
--- a/src/XlsxCompare/MatchBy.cs
+++ b/src/XlsxCompare/MatchBy.cs
@@ -11,6 +11,7 @@ public enum MatchBy
         Decimal,
         Date,
         StringLeftStartsWithRight,
+        StringRightStartsWithLeft,
     }
 
     static class MatchByExtensions
@@ -22,6 +23,7 @@ public static bool IsMatch(this MatchBy? match, string left, string right)
                 MatchBy.Integer => IsIntegerMatch(left, right),
                 MatchBy.StringIgnoreMissingLeft => left.Length == 0 || IsStringMatch(left, right),
                 MatchBy.StringLeftStartsWithRight => IsLeftStartsWithRightMatch(left, right),
+                MatchBy.StringRightStartsWithLeft => IsLeftStartsWithRightMatch(right, left),
                 MatchBy.Decimal => IsDecimalMatch(left, right),
                 _ => IsStringMatch(left, right),
             };