diff --git a/SabreTools.DatFiles/DatFile.Removal.cs b/SabreTools.DatFiles/DatFile.Removal.cs
index 1df69e86..76a86b4e 100644
--- a/SabreTools.DatFiles/DatFile.Removal.cs
+++ b/SabreTools.DatFiles/DatFile.Removal.cs
@@ -3,7 +3,6 @@ using System.Linq;
 #if NET40_OR_GREATER || NETCOREAPP
 using System.Threading.Tasks;
 #endif
-using SabreTools.Core;
 using SabreTools.Core.Tools;
 using SabreTools.DatItems;
 using SabreTools.DatItems.Formats;
diff --git a/SabreTools.DatFiles/DatFile.cs b/SabreTools.DatFiles/DatFile.cs
index 9865a4db..d96d5ed7 100644
--- a/SabreTools.DatFiles/DatFile.cs
+++ b/SabreTools.DatFiles/DatFile.cs
@@ -4,7 +4,6 @@ using System.IO;
 using System.Linq;
 using System.Xml.Serialization;
 using Newtonsoft.Json;
-using SabreTools.Core;
 using SabreTools.Core.Filter;
 using SabreTools.Core.Tools;
 using SabreTools.DatFiles.Formats;
diff --git a/SabreTools.DatFiles/ItemDictionary.cs b/SabreTools.DatFiles/ItemDictionary.cs
index 2a0ec1e0..1b61d306 100644
--- a/SabreTools.DatFiles/ItemDictionary.cs
+++ b/SabreTools.DatFiles/ItemDictionary.cs
@@ -12,7 +12,6 @@ using System.Threading.Tasks;
 #endif
 using System.Xml.Serialization;
 using Newtonsoft.Json;
-using SabreTools.Core;
 using SabreTools.Core.Filter;
 using SabreTools.Core.Tools;
 using SabreTools.DatItems;
diff --git a/SabreTools.FileTypes/Archives/XZArchive.cs b/SabreTools.FileTypes/Archives/XZArchive.cs
index 87282737..6413a90a 100644
--- a/SabreTools.FileTypes/Archives/XZArchive.cs
+++ b/SabreTools.FileTypes/Archives/XZArchive.cs
@@ -2,7 +2,6 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Text.RegularExpressions;
-using SabreTools.Core.Tools;
 using SabreTools.Hashing;
 using SabreTools.IO.Extensions;
 #if NET462_OR_GREATER || NETCOREAPP
diff --git a/SabreTools.FileTypes/BaseFile.cs b/SabreTools.FileTypes/BaseFile.cs
index e5ff73cc..189ef7cd 100644
--- a/SabreTools.FileTypes/BaseFile.cs
+++ b/SabreTools.FileTypes/BaseFile.cs
@@ -1,5 +1,4 @@
-using System;
-using System.IO;
+using System.IO;
 using SabreTools.FileTypes.Aaru;
 using SabreTools.FileTypes.CHD;
 using SabreTools.Hashing;
diff --git a/SabreTools/Features/Split.cs b/SabreTools/Features/Split.cs
index fbbec044..f9e23e77 100644
--- a/SabreTools/Features/Split.cs
+++ b/SabreTools/Features/Split.cs
@@ -1,6 +1,5 @@
 using System.Collections.Generic;
 using System.Threading.Tasks;
-using SabreTools.Core;
 using SabreTools.DatFiles;
 using SabreTools.DatItems;
 using SabreTools.DatTools;