diff --git a/SabreTools.Serialization/Wrappers/PKZIP.cs b/SabreTools.Serialization/Wrappers/PKZIP.cs
index 8f8f1d06..bd0d0fc7 100644
--- a/SabreTools.Serialization/Wrappers/PKZIP.cs
+++ b/SabreTools.Serialization/Wrappers/PKZIP.cs
@@ -100,9 +100,17 @@ namespace SabreTools.Serialization.Wrappers
                 var readerOptions = new ReaderOptions() { LookForHeader = lookForHeader };
                 var zipFile = ZipArchive.Open(_dataSource, readerOptions);
 
-                // Try to read the file path if no entries are found
-                if (zipFile.Entries.Count == 0 && !string.IsNullOrEmpty(Filename) && File.Exists(Filename!))
-                    zipFile = ZipArchive.Open(Filename!, readerOptions);
+                // If the file exists
+                if (!string.IsNullOrEmpty(Filename) && File.Exists(Filename!))
+                {
+                    // Try to read the file path if no entries are found
+                    if (zipFile.Entries.Count == 0)
+                        zipFile = ZipArchive.Open(Filename!, readerOptions);
+                    
+                    // If there's any multipart items, try reading the file as well
+                    else if (System.Array.Exists([.. zipFile.Entries], e => !e.IsComplete))
+                        zipFile = ZipArchive.Open(Filename!, readerOptions);
+                }
 
                 foreach (var entry in zipFile.Entries)
                 {
diff --git a/SabreTools.Serialization/Wrappers/RAR.cs b/SabreTools.Serialization/Wrappers/RAR.cs
index 8a656e4c..d5ca2027 100644
--- a/SabreTools.Serialization/Wrappers/RAR.cs
+++ b/SabreTools.Serialization/Wrappers/RAR.cs
@@ -103,9 +103,17 @@ namespace SabreTools.Serialization.Wrappers
                 var readerOptions = new ReaderOptions() { LookForHeader = lookForHeader };
                 RarArchive rarFile = RarArchive.Open(_dataSource, readerOptions);
 
-                // Try to read the file path if no entries are found
-                if (rarFile.Entries.Count == 0 && !string.IsNullOrEmpty(Filename) && File.Exists(Filename!))
-                    rarFile = RarArchive.Open(Filename!, readerOptions);
+                // If the file exists
+                if (!string.IsNullOrEmpty(Filename) && File.Exists(Filename!))
+                {
+                    // Try to read the file path if no entries are found
+                    if (rarFile.Entries.Count == 0)
+                        rarFile = RarArchive.Open(Filename!, readerOptions);
+                    
+                    // If there's any multipart items, try reading the file as well
+                    else if (System.Array.Exists([.. rarFile.Entries], e => !e.IsComplete))
+                        rarFile = RarArchive.Open(Filename!, readerOptions);
+                }
 
                 if (!rarFile.IsComplete)
                     return false;
diff --git a/SabreTools.Serialization/Wrappers/SevenZip.cs b/SabreTools.Serialization/Wrappers/SevenZip.cs
index c877fd74..41b2dcb8 100644
--- a/SabreTools.Serialization/Wrappers/SevenZip.cs
+++ b/SabreTools.Serialization/Wrappers/SevenZip.cs
@@ -102,9 +102,18 @@ namespace SabreTools.Serialization.Wrappers
             {
                 var readerOptions = new ReaderOptions() { LookForHeader = lookForHeader };
                 var sevenZip = SevenZipArchive.Open(_dataSource, readerOptions);
-                // Try to read the file path if no entries are found
-                if (sevenZip.Entries.Count == 0 && !string.IsNullOrEmpty(Filename) && File.Exists(Filename!))
-                    sevenZip = SevenZipArchive.Open(Filename!, readerOptions);
+
+                // If the file exists
+                if (!string.IsNullOrEmpty(Filename) && File.Exists(Filename!))
+                {
+                    // Try to read the file path if no entries are found
+                    if (sevenZip.Entries.Count == 0)
+                        sevenZip = SevenZipArchive.Open(Filename!, readerOptions);
+                    
+                    // If there's any multipart items, try reading the file as well
+                    else if (System.Array.Exists([.. sevenZip.Entries], e => !e.IsComplete))
+                        sevenZip = SevenZipArchive.Open(Filename!, readerOptions);
+                }
 
                 // Currently doesn't flag solid 7z archives with only 1 solid block as solid, but practically speaking
                 // this is not much of a concern.