Removed the doc1.close() and doc2.close() calls and instead marked both documents as saved = true (same as the comparison document)

src/Directory.Build.props

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project>
   <PropertyGroup>
-    <Version>0.3.0</Version>
+    <Version>0.3.1</Version>
     <PackageTags>Word, Diff, Compare</PackageTags>
     <Description>A .NET tool that compares two Word documents side by side using Microsoft Word's built-in document comparison feature.</Description>
     <Nullable>enable</Nullable>

src/MsWordDiff/Word.cs

@@ -72,11 +72,10 @@ static dynamic LaunchCompare(dynamic word, dynamic doc1, dynamic doc2)
             RevisedAuthor: "",
             IgnoreAllComparisonWarnings: true);
 
-        doc1.Close(SaveChanges: false);
-        doc2.Close(SaveChanges: false);
-
         // Mark as saved so Word won't prompt to save on close
         compare.Saved = true;
+        doc1.Saved = true;
+        doc2.Saved = true;
 
         compare.AutoSaveOn = false;
         compare.ShowSpellingErrors = false;