diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index a4259de..5aac98d 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -6,8 +6,8 @@ pool:
   vmImage: 'windows-latest'
 
 variables:
-  major: 0
-  minor: 9
+  major: 1
+  minor: 1
   revision: 0
   solution: '**/*.sln'
   buildPlatform: 'Any CPU'
diff --git a/src/WldMr.Excel.Core/ArrayFunction.fs b/src/WldMr.Excel.Core/ArrayFunction.fs
index ee85952..6ba8e81 100644
--- a/src/WldMr.Excel.Core/ArrayFunction.fs
+++ b/src/WldMr.Excel.Core/ArrayFunction.fs
@@ -127,7 +127,7 @@ module ArrayFunction =
 
     member internal uaa.evalCached f subEval i j =
       result {
-        let! fp = subEval (f) i j
+        let! fp = subEval f i j
         let! v = uaa.cachedConversion i j
         return fp v
       }
@@ -256,6 +256,62 @@ module ArrayFunction =
     member uaa.EvalArrayIndexedFunction f = uaa.returnArray2dFromArrays (uaa.Eval f) false
     member uaa.EvalArrayIndexedFunctionHorizontal f = uaa.returnArray2dFromArrays (uaa.Eval f) true
 
+    member uaa.Add(name: string, c: xlObj -> _, value: xlObj[,]) =
+      ArrayFunctionDefinition<_, _, _, _, _, _, _, _, _, _>(name, value, uaa, c)
+
+  and ArrayFunctionDefinition<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'T8, 'T9, 'T10>(name: string, value: xlObj[,], rest: ArrayFunctionDefinition<'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'T8, 'T9, 'T10>, conversion: xlObj -> Result<'T1, string> ) =
+    inherit UdfArrayArgWithValue<'T1>(name, value, rest :> UdfArrayArgBase |> Some, conversion)
+
+    member internal uaa.Eval f i j = uaa.evalCached f rest.Eval i j
+    member uaa.EvalFunction f = uaa.returnArray2d (uaa.Eval (fun _ _ -> f))
+    member uaa.EvalArrayFunction f = uaa.returnArray2dFromArrays (uaa.Eval (fun _ _ -> f)) false
+    member uaa.EvalArrayFunctionHorizontal f = uaa.returnArray2dFromArrays (uaa.Eval (fun _ _ -> f)) true
+    member uaa.EvalIndexedFunction f = uaa.returnArray2d (uaa.Eval f)
+    member uaa.EvalArrayIndexedFunction f = uaa.returnArray2dFromArrays (uaa.Eval f) false
+    member uaa.EvalArrayIndexedFunctionHorizontal f = uaa.returnArray2dFromArrays (uaa.Eval f) true
+
+    member uaa.Add(name: string, c: xlObj -> _, value: xlObj[,]) =
+      ArrayFunctionDefinition<_, _, _, _, _, _, _, _, _, _, _>(name, value, uaa, c)
+
+  and ArrayFunctionDefinition<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'T8, 'T9, 'T10, 'T11>(name: string, value: xlObj[,], rest: ArrayFunctionDefinition<'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'T8, 'T9, 'T10, 'T11>, conversion: xlObj -> Result<'T1, string> ) =
+    inherit UdfArrayArgWithValue<'T1>(name, value, rest :> UdfArrayArgBase |> Some, conversion)
+
+    member internal uaa.Eval f i j = uaa.evalCached f rest.Eval i j
+    member uaa.EvalFunction f = uaa.returnArray2d (uaa.Eval (fun _ _ -> f))
+    member uaa.EvalArrayFunction f = uaa.returnArray2dFromArrays (uaa.Eval (fun _ _ -> f)) false
+    member uaa.EvalArrayFunctionHorizontal f = uaa.returnArray2dFromArrays (uaa.Eval (fun _ _ -> f)) true
+    member uaa.EvalIndexedFunction f = uaa.returnArray2d (uaa.Eval f)
+    member uaa.EvalArrayIndexedFunction f = uaa.returnArray2dFromArrays (uaa.Eval f) false
+    member uaa.EvalArrayIndexedFunctionHorizontal f = uaa.returnArray2dFromArrays (uaa.Eval f) true
+
+    member uaa.Add(name: string, c: xlObj -> _, value: xlObj[,]) =
+      ArrayFunctionDefinition<_, _, _, _, _, _, _, _, _, _, _, _>(name, value, uaa, c)
+
+  and ArrayFunctionDefinition<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'T8, 'T9, 'T10, 'T11, 'T12>(name: string, value: xlObj[,], rest: ArrayFunctionDefinition<'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'T8, 'T9, 'T10, 'T11, 'T12>, conversion: xlObj -> Result<'T1, string> ) =
+    inherit UdfArrayArgWithValue<'T1>(name, value, rest :> UdfArrayArgBase |> Some, conversion)
+
+    member internal uaa.Eval f i j = uaa.evalCached f rest.Eval i j
+    member uaa.EvalFunction f = uaa.returnArray2d (uaa.Eval (fun _ _ -> f))
+    member uaa.EvalArrayFunction f = uaa.returnArray2dFromArrays (uaa.Eval (fun _ _ -> f)) false
+    member uaa.EvalArrayFunctionHorizontal f = uaa.returnArray2dFromArrays (uaa.Eval (fun _ _ -> f)) true
+    member uaa.EvalIndexedFunction f = uaa.returnArray2d (uaa.Eval f)
+    member uaa.EvalArrayIndexedFunction f = uaa.returnArray2dFromArrays (uaa.Eval f) false
+    member uaa.EvalArrayIndexedFunctionHorizontal f = uaa.returnArray2dFromArrays (uaa.Eval f) true
+
+    member uaa.Add(name: string, c: xlObj -> _, value: xlObj[,]) =
+      ArrayFunctionDefinition<_, _, _, _, _, _, _, _, _, _, _, _, _>(name, value, uaa, c)
+
+  and ArrayFunctionDefinition<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'T8, 'T9, 'T10, 'T11, 'T12, 'T13>(name: string, value: xlObj[,], rest: ArrayFunctionDefinition<'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'T8, 'T9, 'T10, 'T11, 'T12, 'T13>, conversion: xlObj -> Result<'T1, string> ) =
+    inherit UdfArrayArgWithValue<'T1>(name, value, rest :> UdfArrayArgBase |> Some, conversion)
+
+    member internal uaa.Eval f i j = uaa.evalCached f rest.Eval i j
+    member uaa.EvalFunction f = uaa.returnArray2d (uaa.Eval (fun _ _ -> f))
+    member uaa.EvalArrayFunction f = uaa.returnArray2dFromArrays (uaa.Eval (fun _ _ -> f)) false
+    member uaa.EvalArrayFunctionHorizontal f = uaa.returnArray2dFromArrays (uaa.Eval (fun _ _ -> f)) true
+    member uaa.EvalIndexedFunction f = uaa.returnArray2d (uaa.Eval f)
+    member uaa.EvalArrayIndexedFunction f = uaa.returnArray2dFromArrays (uaa.Eval f) false
+    member uaa.EvalArrayIndexedFunctionHorizontal f = uaa.returnArray2dFromArrays (uaa.Eval f) true
+
 type ArrayFunctionBuilder() =
   static member Add(name: string, c: xlObj -> _, value: xlObj[,]) =
     ArrayFunction.ArrayFunctionDefinition<_>(name, value, None, c)
diff --git a/src/WldMr.Excel.Functions/xlFormat.fs b/src/WldMr.Excel.Functions/xlFormat.fs
index a80f8e1..7882a06 100644
--- a/src/WldMr.Excel.Functions/xlFormat.fs
+++ b/src/WldMr.Excel.Functions/xlFormat.fs
@@ -22,7 +22,9 @@ let xlFormatA
     o1: xlObj[,], t1: xlObj[,],
     o2: xlObj[,], t2: xlObj[,],
     o3: xlObj[,], t3: xlObj[,],
-    o4: xlObj[,], t4: xlObj[,]
+    o4: xlObj[,], t4: xlObj[,],
+    o5: xlObj[,], t5: xlObj[,],
+    o6: xlObj[,], t6: xlObj[,]
   ): xlObj[,] =
   let convertXlObj (o: xlObj) (t: xlObj) =
     match o, t with
@@ -51,11 +53,13 @@ let xlFormatA
     (o2: xlObj) (t2: xlObj)
     (o3: xlObj) (t3: xlObj)
     (o4: xlObj) (t4: xlObj)
+    (o5: xlObj) (t5: xlObj)
+    (o6: xlObj) (t6: xlObj)
     =
     result {
       let! args =
-        ([ o1; o2; o3; o4],
-         [ t1; t2; t3; t4])
+        ([ o1; o2; o3; o4; o5; o6],
+         [ t1; t2; t3; t4; t5; t6])
         ||> List.map2 convertXlObj
         |> List.sequenceResultM
 
@@ -68,5 +72,7 @@ let xlFormatA
     .Add("o2", Ok, o2).Add("t2", Ok, t2)
     .Add("o3", Ok, o3).Add("t3", Ok, t3)
     .Add("o4", Ok, o4).Add("t4", Ok, t4)
+    .Add("o5", Ok, o5).Add("t5", Ok, t5)
+    .Add("o6", Ok, o6).Add("t6", Ok, t6)
     .EvalFunction scalarF
   |> FunctionCall.eval
diff --git a/src/WldMr.Excel.Functions/xlString.fs b/src/WldMr.Excel.Functions/xlString.fs
index b1f701a..5d1160c 100644
--- a/src/WldMr.Excel.Functions/xlString.fs
+++ b/src/WldMr.Excel.Functions/xlString.fs
@@ -38,7 +38,7 @@ let regexFilter regex ignoreCase input: Result<xlObj[,], string> =
     "This function also operates on arrays\r\n" +
     "Returns FALSE for any non text input\r\n"
 )>]
-let xlStringStartsWith
+let xlStartsWith
   (
     [<ExcelArgument(Description="The text string value (or range of values) which start is being queried")>]
       input: xlObj[,],
@@ -62,6 +62,27 @@ let xlStringStartsWith
   } |> XlObjRange.ofResult
 
 
+[<ExcelFunction(Category= "WldMr Text",
+  IsThreadSafe=true,
+  IsHidden=true,
+  Description=
+    "Returns TRUE if the text string starts with the specified prefix\r\n" +
+    "This function also operates on arrays\r\n" +
+    "Returns FALSE for any non text input\r\n"
+)>]
+let xlStringStartsWith   (
+    [<ExcelArgument(Description="The text string value (or range of values) which start is being queried")>]
+      input: xlObj[,],
+    [<ExcelArgument(Description="The text string value to be searched for at the start of the input")>]
+      prefix: string,
+    [<ExcelArgument(Description="If TRUE or omitted, a and A are considered equal, if FALSE, a and A are different")>]
+      ignoreCase: xlObj,
+    [<ExcelArgument(Description="If TRUE, 'prefix' is a regular expression, if FALSE or omitted, 'prefix' is a literal")>]
+      useRegex: xlObj
+  ) =
+  xlStartsWith(input, prefix, ignoreCase, useRegex)
+
+
 [<ExcelFunction(
   Category= "WldMr Text",
   IsThreadSafe=true,
@@ -70,7 +91,7 @@ let xlStringStartsWith
     "This function also operates on arrays\r\n" +
     "Returns FALSE for any non text input\r\n"
 )>]
-let xlStringEndsWith
+let xlEndsWith
   (
     [<ExcelArgument(Description="The text string value (or range of values) which end is being queried")>]
       input: xlObj[,],
@@ -93,6 +114,28 @@ let xlStringEndsWith
         |> stringFilter (fun s -> s.EndsWith(suffix, ic, System.Globalization.CultureInfo.InvariantCulture))
   } |> XlObjRange.ofResult
 
+[<ExcelFunction(
+  Category= "WldMr Text",
+  IsThreadSafe=true,
+  IsHidden=true,
+  Description=
+    "Returns TRUE if the text string ends with the specified suffix\r\n" +
+    "This function also operates on arrays\r\n" +
+    "Returns FALSE for any non text input\r\n"
+)>]
+let xlStringEndsWith
+  (
+    [<ExcelArgument(Description="The text string value (or range of values) which end is being queried")>]
+      input: xlObj[,],
+    [<ExcelArgument(Description="The text string value to be searched for at the end of the input")>]
+      suffix: string,
+    [<ExcelArgument(Description="If TRUE or omitted, a and A are considered equal, if FALSE, a and A are different")>]
+      ignoreCase: xlObj,
+    [<ExcelArgument(Description="If TRUE, 'suffix' is a regular expression, if FALSE or omitted, 'suffix' is a literal")>]
+      useRegex: xlObj
+  ) =
+  xlEndsWith(input, suffix, ignoreCase, useRegex)
+
 
 [<ExcelFunction(Category= "WldMr Text",
   IsThreadSafe=true,