Powershell Find / Replace advice - Script provided

Good Afternoon

Currently i am producing a script to open up a word document in a particular file location, then to get a find and replace taking place in the document as per the find/replace strings, then to save and close the file and move onto the next one in my list

$list = gci "C:\scripts\test" -Include *.docx -Force -recurse

foreach ($foo in $list) {

 

$objWord = New-Object -ComObject word.application

$objWord.Visible = $True

 

$objDoc = $objWord.Documents.Open("$foo")

$objSelection = $objWord.Selection 

 

$findtext= "Test1"

$ReplaceText = "Test2"

$ReplaceAll = 2
$FindContinue = 1
$MatchFuzzy = $False
$MatchCase = $False
$MatchPhrase = $false
$MatchWholeWord = $True
$MatchWildcards = $True
$MatchSoundsLike = $False
$MatchAllWordForms = $False
$Forward = $True
$Wrap = $FindContinue
$Format = $False
    $objSelection.Find.execute(
            $FindText,
            $MatchCase,
            $MatchWholeWord,
            $MatchWildcards,
            $MatchSoundsLike,
            $MatchAllWordForms,
            $Forward,
            $Wrap,
            $Format,
            $ReplaceText,
            $ReplaceAll
                               )
                               
 $objdoc.Save()
 $objdoc.Close()
 
   

}

However currently i have 1 document in the test folder which seems to open 7 different intances of word and produces the following errors, the file is not corrupt as it states as i can open this without issue:

Exception calling "Open" with "1" argument(s): "The file appears to be corrupted."
At C:\Scripts\test Search.ps1:14 char:34
+ $objDoc = $objWord.Documents.Open <<<< ("$foo")
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : ComMethodTargetInvocation
 
You cannot call a method on a null-valued expression.
At C:\Scripts\test Search.ps1:36 char:31
+     $objSelection.Find.execute <<<< (
    + CategoryInfo          : InvalidOperation: (execute:String) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull
 
Exception calling "Save" with "0" argument(s): "The RPC server is unavailable. (Exception from HRESULT: 0x8
00706BA)"
At C:\Scripts\test Search.ps1:50 char:14
+  $objdoc.Save <<<< ()
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : DotNetMethodException
 
Exception calling "Close" with "3" argument(s): "The RPC server is unavailable. (Exception from HRESULT: 0x
800706BA)"
At C:\Scripts\test Search.ps1:51 char:15
+  $objdoc.Close <<<< ()
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : DotNetMethodException
 
Exception calling "Open" with "1" argument(s): "The file appears to be corrupted."
At C:\Scripts\test Search.ps1:14 char:34
+ $objDoc = $objWord.Documents.Open <<<< ("$foo")
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : ComMethodTargetInvocation
 
You cannot call a method on a null-valued expression.
At C:\Scripts\test Search.ps1:36 char:31
+     $objSelection.Find.execute <<<< (
    + CategoryInfo          : InvalidOperation: (execute:String) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull
 
Exception calling "Save" with "0" argument(s): "The RPC server is unavailable. (Exception from HRESULT: 0x8
00706BA)"
At C:\Scripts\test Search.ps1:50 char:14
+  $objdoc.Save <<<< ()
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : DotNetMethodException
 
Exception calling "Close" with "3" argument(s): "The RPC server is unavailable. (Exception from HRESULT: 0x
800706BA)"
At C:\Scripts\test Search.ps1:51 char:15
+  $objdoc.Close <<<< ()
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : DotNetMethodException
 
Exception calling "Open" with "1" argument(s): "The file appears to be corrupted."
At C:\Scripts\test Search.ps1:14 char:34
+ $objDoc = $objWord.Documents.Open <<<< ("$foo")
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : ComMethodTargetInvocation
 
You cannot call a method on a null-valued expression.
At C:\Scripts\test Search.ps1:36 char:31
+     $objSelection.Find.execute <<<< (
    + CategoryInfo          : InvalidOperation: (execute:String) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull
 
Exception calling "Save" with "0" argument(s): "The RPC server is unavailable. (Exception from HRESULT: 0x8
00706BA)"
At C:\Scripts\test Search.ps1:50 char:14
+  $objdoc.Save <<<< ()
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : DotNetMethodException
 
Exception calling "Close" with "3" argument(s): "The RPC server is unavailable. (Exception from HRESULT: 0x
800706BA)"
At C:\Scripts\test Search.ps1:51 char:15
+  $objdoc.Close <<<< ()
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : DotNetMethodException
 
Exception calling "Open" with "1" argument(s): "The file appears to be corrupted."
At C:\Scripts\test Search.ps1:14 char:34
+ $objDoc = $objWord.Documents.Open <<<< ("$foo")
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : ComMethodTargetInvocation
 
You cannot call a method on a null-valued expression.
At C:\Scripts\test Search.ps1:36 char:31
+     $objSelection.Find.execute <<<< (
    + CategoryInfo          : InvalidOperation: (execute:String) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull
 
Exception calling "Save" with "0" argument(s): "The RPC server is unavailable. (Exception from HRESULT: 0x8
00706BA)"
At C:\Scripts\test Search.ps1:50 char:14
+  $objdoc.Save <<<< ()
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : DotNetMethodException
 
Exception calling "Close" with "3" argument(s): "The RPC server is unavailable. (Exception from HRESULT: 0x
800706BA)"
At C:\Scripts\test Search.ps1:51 char:15
+  $objdoc.Close <<<< ()
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : DotNetMethodException
 
Exception calling "Open" with "1" argument(s): "The file appears to be corrupted."
At C:\Scripts\test Search.ps1:14 char:34
+ $objDoc = $objWord.Documents.Open <<<< ("$foo")
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : ComMethodTargetInvocation
 
You cannot call a method on a null-valued expression.
At C:\Scripts\test Search.ps1:36 char:31
+     $objSelection.Find.execute <<<< (
    + CategoryInfo          : InvalidOperation: (execute:String) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull
 
Exception calling "Save" with "0" argument(s): "The RPC server is unavailable. (Exception from HRESULT: 0x8
00706BA)"
At C:\Scripts\test Search.ps1:50 char:14
+  $objdoc.Save <<<< ()
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : DotNetMethodException
 
Exception calling "Close" with "3" argument(s): "The RPC server is unavailable. (Exception from HRESULT: 0x
800706BA)"
At C:\Scripts\test Search.ps1:51 char:15
+  $objdoc.Close <<<< ()
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : DotNetMethodException
 
Exception calling "Open" with "1" argument(s): "The file appears to be corrupted."
At C:\Scripts\test Search.ps1:14 char:34
+ $objDoc = $objWord.Documents.Open <<<< ("$foo")
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : ComMethodTargetInvocation
 
You cannot call a method on a null-valued expression.
At C:\Scripts\test Search.ps1:36 char:31
+     $objSelection.Find.execute <<<< (
    + CategoryInfo          : InvalidOperation: (execute:String) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull
 
Exception calling "Save" with "0" argument(s): "The RPC server is unavailable. (Exception from HRESULT: 0x8
00706BA)"
At C:\Scripts\test Search.ps1:50 char:14
+  $objdoc.Save <<<< ()
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : DotNetMethodException
 
Exception calling "Close" with "3" argument(s): "The RPC server is unavailable. (Exception from HRESULT: 0x
800706BA)"
At C:\Scripts\test Search.ps1:51 char:15
+  $objdoc.Close <<<< ()
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : DotNetMethodException
 
Exception calling "Open" with "1" argument(s): "The file appears to be corrupted."
At C:\Scripts\test Search.ps1:14 char:34
+ $objDoc = $objWord.Documents.Open <<<< ("$foo")
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : ComMethodTargetInvocation
 
You cannot call a method on a null-valued expression.
At C:\Scripts\test Search.ps1:36 char:31
+     $objSelection.Find.execute <<<< (
    + CategoryInfo          : InvalidOperation: (execute:String) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull
 
Exception calling "Save" with "0" argument(s): "The RPC server is unavailable. (Exception from HRESULT: 0x8
00706BA)"
At C:\Scripts\test Search.ps1:50 char:14
+  $objdoc.Save <<<< ()
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : DotNetMethodException
 
Exception calling "Close" with "3" argument(s): "The RPC server is unavailable. (Exception from HRESULT: 0x
800706BA)"
At C:\Scripts\test Search.ps1:51 char:15
+  $objdoc.Close <<<< ()
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : DotNetMethodException