diff --git a/ARAH/ARAH.psd1 b/ARAH/ARAH.psd1
index b39a802..1d881f2 100644
--- a/ARAH/ARAH.psd1
+++ b/ARAH/ARAH.psd1
@@ -3,7 +3,7 @@
 	RootModule        = 'ARAH.psm1'
 
 	# Version number of this module.
-	ModuleVersion     = '1.3.7'
+	ModuleVersion     = '1.3.8'
 
 	# ID used to uniquely identify this module
 	GUID              = '5bf61bed-a3da-4550-949a-a869b8dc29c6'
diff --git a/ARAH/changelog.md b/ARAH/changelog.md
index 6dfdb6e..74d234d 100644
--- a/ARAH/changelog.md
+++ b/ARAH/changelog.md
@@ -1,4 +1,7 @@
 # Changelog
+## 1.3.8 (2023-09-08)
+ - If the result is JSON you can enable converting it to a HashTable with the `Invoke-ARAHRequest -ConvertJsonAsHashtable` switch. This is needed in case of the error `Cannot convert the JSON string because it contains keys with different casing. Please use the -AsHashTable switch instead.`
+ - File Downloads can be handled
 ## 1.3.6 (2023-03-03)
  - If using a HashTable object for the `Invoke-ARAHRequest -Body` parameter it is only converted to json if the content type matches `json`.
 ## 1.3.5 (2023-01-18)
diff --git a/ARAH/functions/Invoke-ARAHRequest.ps1 b/ARAH/functions/Invoke-ARAHRequest.ps1
index 9844315..b08320e 100644
--- a/ARAH/functions/Invoke-ARAHRequest.ps1
+++ b/ARAH/functions/Invoke-ARAHRequest.ps1
@@ -58,6 +58,9 @@
     .PARAMETER PagingHandler
     Name of a registered PSFScriptBlock which should process the automatic paging of data.
 
+    .PARAMETER ConvertJsonAsHashtable
+    If set the json result will be converted as a HashTable
+
     .EXAMPLE
     $result = Invoke-ARAH -connection $this -path "/v4/auth/login" -method POST -body @{login = $credentials.UserName; password = $credentials.GetNetworkCredential().Password; language = "1"; authType = "sql" } -hideparameters $true
 
@@ -81,12 +84,14 @@
         $Body,
         [Hashtable] $URLParameter,
         [string]$InFile,
+        [string]$OutFile,
         [string]$ContentType,
         [bool]$EnableException = $true,
         [ValidateSet('CertificateCheck', 'HttpErrorCheck', 'HeaderValidation')]
         [String[]]$SkipCheck = @(),
         [string]$RequestModifier,
         [string]$PagingHandler,
+        [switch]$ConvertJsonAsHashtable,
         [switch]$EnablePaging
     )
     $uri = $connection.webServiceRoot + $path
@@ -138,6 +143,9 @@
     If ($InFile) {
         $restAPIParameter.InFile = $InFile
     }
+    If ($OutFile) {
+        $restAPIParameter.OutFile = $OutFile
+    }
 
     try {
         If ($RequestModifier) {
@@ -146,6 +154,7 @@
         }
         Write-ARAHCallMessage $restAPIParameter
         $response = Invoke-WebRequest @restAPIParameter
+        if($OutFile){return}
         if ($PSBoundParameters.Debug) {
             $global:invokeARAHrestAPIParameter = $restAPIParameter
             Write-PSFMessage "Saving restAPIParameter to `$global:invokeARAHrestAPIParameter" -level Debug
@@ -164,7 +173,11 @@
             $result = $connection.Charset.GetString([System.Text.Encoding]::GetEncoding(28591).getBytes($result))
         }
         if ($effectiveContentType -like '*json*') {
-            $result = $result | ConvertFrom-Json
+            if ($ConvertJsonAsHashtable){
+                $result = $result | ConvertFrom-Json -AsHashtable
+            }else{
+                $result = $result | ConvertFrom-Json
+            }
         }
         Write-PSFMessage "Response-Header: $($response.Headers|Format-Table|Out-String)" -Level Debug
         Write-PSFMessage -Level Debug "result= $($result| ConvertTo-Json -WarningAction SilentlyContinue -Depth 5)"