diff --git a/ConvertTo-ExcelXlsx.ps1 b/ConvertTo-ExcelXlsx.ps1
deleted file mode 100644
index 64d6c32..0000000
--- a/ConvertTo-ExcelXlsx.ps1
+++ /dev/null
@@ -1,50 +0,0 @@
-Function ConvertTo-ExcelXlsx {
-[CmdletBinding()]
-PARAM
-(
-    [parameter(Mandatory=$true, ValueFromPipeline)]
-    [string]$Path,
-    [parameter(Mandatory=$false)]
-    [switch]$Force
-)
-    if(-Not ($Path | Test-Path) ){
-        throw "File not found" 
-    }
-    if(-Not ($Path | Test-Path -PathType Leaf) ){
-        throw "Folder paths are not allowed"
-    }
-    
-    $xlFixedFormat = 51 #Constant for XLSX Workbook
-    $xlsFile = Get-Item -Path $Path
-    $xlsxPath = "{0}x" -f $xlsFile.FullName
-
-    if($xlsFile.Extension -ne ".xls"){
-        throw "Expected .xls extension"
-    }
-
-    if(Test-Path -Path $xlsxPath){
-        if($Force){
-            try {
-                Remove-Item $xlsxPath -Force
-            } catch {
-                throw "{0} already exists and cannot be removed. The file may be locked by another application." -f $xlsxPath
-            }
-            Write-Verbose $("Removed {0}" -f $xlsxPath)
-        } else {
-            throw "{0} already exists!" -f $xlsxPath
-        }
-    }
-    
-    try{    
-        $Excel = New-Object -ComObject "Excel.Application"
-    } catch {
-        throw "Could not create Excel.Application ComObject. Please verify that Excel is installed."
-    }
-
-    $Excel.Visible = $false
-    $Excel.Workbooks.Open($xlsFile.FullName) | Out-Null
-    $Excel.ActiveWorkbook.SaveAs($xlsxPath, $xlFixedFormat)
-    $Excel.ActiveWorkbook.Close()
-    $Excel.Quit()
-}
-
diff --git a/ConvertToExcelXlsx.ps1 b/ConvertToExcelXlsx.ps1
new file mode 100644
index 0000000..eb62c65
--- /dev/null
+++ b/ConvertToExcelXlsx.ps1
@@ -0,0 +1,53 @@
+Function ConvertTo-ExcelXlsx {
+[CmdletBinding()]
+    Param
+    (
+        [parameter(Mandatory=$true, ValueFromPipeline)]
+        [string]$Path,
+        [parameter(Mandatory=$false)]
+        [switch]$Force
+    )
+    Process
+    {
+        if(-Not ($Path | Test-Path) ){
+            throw "File not found" 
+        }
+        if(-Not ($Path | Test-Path -PathType Leaf) ){
+            throw "Folder paths are not allowed"
+        }
+
+        $xlFixedFormat = 51 #Constant for XLSX Workbook
+        $xlsFile = Get-Item -Path $Path
+        $xlsxPath = "{0}x" -f $xlsFile.FullName
+
+        if($xlsFile.Extension -ne ".xls"){
+            throw "Expected .xls extension"
+        }
+
+        if(Test-Path -Path $xlsxPath){
+            if($Force){
+                try {
+                    Remove-Item $xlsxPath -Force
+                } catch {
+                    throw "{0} already exists and cannot be removed. The file may be locked by another application." -f $xlsxPath
+                }
+                Write-Verbose $("Removed {0}" -f $xlsxPath)
+            } else {
+                throw "{0} already exists!" -f $xlsxPath
+            }
+        }
+
+        try{    
+            $Excel = New-Object -ComObject "Excel.Application"
+        } catch {
+            throw "Could not create Excel.Application ComObject. Please verify that Excel is installed."
+        }
+
+        $Excel.Visible = $false
+        $Excel.Workbooks.Open($xlsFile.FullName) | Out-Null
+        $Excel.ActiveWorkbook.SaveAs($xlsxPath, $xlFixedFormat)
+        $Excel.ActiveWorkbook.Close()
+        $Excel.Quit()
+    }
+}
+