diff --git a/src/BlazorDatasheet.Core/Events/FormatChangedEventArgs.cs b/src/BlazorDatasheet.Core/Events/FormatChangedEventArgs.cs
deleted file mode 100644
index bd426889..00000000
--- a/src/BlazorDatasheet.Core/Events/FormatChangedEventArgs.cs
+++ /dev/null
@@ -1,41 +0,0 @@
-using BlazorDatasheet.Core.Formats;
-using BlazorDatasheet.DataStructures.Geometry;
-
-namespace BlazorDatasheet.Core.Events;
-
-public class FormatChangedEventArgs
-{
-    /// <summary>
-    /// All the individual CELL that were made to the formats of ranges in this event.
-    /// </summary>
-    public IEnumerable<CellChangedFormat> CellsChanged { get; }
-
-    public IEnumerable<ColumnRegion> ColumnsChanged { get; }
-    public IEnumerable<RowRegion> RowsChanged { get; }
-
-    public FormatChangedEventArgs(
-        IEnumerable<CellChangedFormat> changedFormats,
-        IEnumerable<ColumnRegion> columnsChanged,
-        IEnumerable<RowRegion> rowsChanged)
-    {
-        CellsChanged = changedFormats;
-        ColumnsChanged = columnsChanged;
-        RowsChanged = rowsChanged;
-    }
-}
-
-public class CellChangedFormat
-{
-    public CellChangedFormat(int row, int col, CellFormat? oldFormat, CellFormat? newFormat)
-    {
-        Row = row;
-        Col = col;
-        OldFormat = oldFormat;
-        NewFormat = newFormat;
-    }
-
-    public int Row { get; }
-    public int Col { get; }
-    public CellFormat? OldFormat { get; }
-    public CellFormat? NewFormat { get; }
-}
\ No newline at end of file
diff --git a/src/BlazorDatasheet.Core/Events/FormulaChangedEventArgs.cs b/src/BlazorDatasheet.Core/Events/FormulaChangedEventArgs.cs
deleted file mode 100644
index 1c43cd9f..00000000
--- a/src/BlazorDatasheet.Core/Events/FormulaChangedEventArgs.cs
+++ /dev/null
@@ -1,17 +0,0 @@
-namespace BlazorDatasheet.Core.Events;
-
-public class FormulaChangedEventArgs
-{
-    public int Row { get; }
-    public int Col { get; }
-    public string? OldFormula { get; }
-    public string? NewFormula { get; }
-
-    public FormulaChangedEventArgs(int row, int col, string? oldFormula, string? newFormula)
-    {
-        Row = row;
-        Col = col;
-        OldFormula = oldFormula;
-        NewFormula = newFormula;
-    }
-}
\ No newline at end of file
diff --git a/src/BlazorDatasheet.Core/Events/PageMovementEvent.cs b/src/BlazorDatasheet.Core/Events/PageMovementEvent.cs
deleted file mode 100644
index 26bd3b47..00000000
--- a/src/BlazorDatasheet.Core/Events/PageMovementEvent.cs
+++ /dev/null
@@ -1,7 +0,0 @@
-namespace BlazorDatasheet.Core.Events;
-
-public class PageMovementEvent
-{
-    public double PageX { get; set; }
-    public double PageY { get; set; }
-}
\ No newline at end of file
diff --git a/src/BlazorDatasheet.Core/Events/SheetInvalidateEventArgs.cs b/src/BlazorDatasheet.Core/Events/SheetInvalidateEventArgs.cs
deleted file mode 100644
index 85861b55..00000000
--- a/src/BlazorDatasheet.Core/Events/SheetInvalidateEventArgs.cs
+++ /dev/null
@@ -1,13 +0,0 @@
-using BlazorDatasheet.DataStructures.Geometry;
-
-namespace BlazorDatasheet.Core.Events;
-
-public class SheetInvalidateEventArgs
-{
-    public IReadOnlySet<CellPosition> DirtyCells { get; }
-
-    internal SheetInvalidateEventArgs(IReadOnlySet<CellPosition> dirtyCells)
-    {
-        DirtyCells = dirtyCells;
-    }
-}
\ No newline at end of file
diff --git a/src/BlazorDatasheet.Core/FormulaEngine/Highlight.cs b/src/BlazorDatasheet.Core/FormulaEngine/Highlight.cs
deleted file mode 100644
index ccfab97a..00000000
--- a/src/BlazorDatasheet.Core/FormulaEngine/Highlight.cs
+++ /dev/null
@@ -1,15 +0,0 @@
-namespace BlazorDatasheet.Core.FormulaEngine;
-
-public class Highlight
-{
-    public int StartPosition { get; }
-    public int EndPosition { get; }
-    public System.Drawing.Color Color { get; }
-
-    public Highlight(int startPosition, int endPosition, System.Drawing.Color color)
-    {
-        StartPosition = startPosition;
-        EndPosition = endPosition;
-        Color = color;
-    }
-}
\ No newline at end of file
diff --git a/src/BlazorDatasheet.Core/FormulaEngine/SyntaxHighlightOptions.cs b/src/BlazorDatasheet.Core/FormulaEngine/SyntaxHighlightOptions.cs
deleted file mode 100644
index 0edc230c..00000000
--- a/src/BlazorDatasheet.Core/FormulaEngine/SyntaxHighlightOptions.cs
+++ /dev/null
@@ -1,12 +0,0 @@
-namespace BlazorDatasheet.Core.FormulaEngine;
-
-public class SyntaxHighlightOptions
-{
-    public List<System.Drawing.Color> RangeColors { get; set; } = new()
-    {
-        System.Drawing.Color.DodgerBlue,
-        System.Drawing.Color.Red,
-        System.Drawing.Color.MediumPurple,
-        System.Drawing.Color.ForestGreen,
-    };
-}
\ No newline at end of file
diff --git a/src/BlazorDatasheet.Core/FormulaEngine/SyntaxHighlightResult.cs b/src/BlazorDatasheet.Core/FormulaEngine/SyntaxHighlightResult.cs
deleted file mode 100644
index ec35f5f2..00000000
--- a/src/BlazorDatasheet.Core/FormulaEngine/SyntaxHighlightResult.cs
+++ /dev/null
@@ -1,11 +0,0 @@
-namespace BlazorDatasheet.Core.FormulaEngine;
-
-public class SyntaxHighlightResult
-{
-    public ICollection<Highlight> Highlights { get; }
-
-    public SyntaxHighlightResult(ICollection<Highlight> highlights)
-    {
-        Highlights = highlights;
-    }
-}
\ No newline at end of file
diff --git a/src/BlazorDatasheet.Core/FormulaEngine/SyntaxHighlighter.cs b/src/BlazorDatasheet.Core/FormulaEngine/SyntaxHighlighter.cs
deleted file mode 100644
index 024e4e54..00000000
--- a/src/BlazorDatasheet.Core/FormulaEngine/SyntaxHighlighter.cs
+++ /dev/null
@@ -1,7 +0,0 @@
-using BlazorDatasheet.Formula.Core;
-
-namespace BlazorDatasheet.Core.FormulaEngine;
-
-public class SyntaxHighlighter
-{
-}
\ No newline at end of file
diff --git a/src/BlazorDatasheet.Core/Interfaces/IClearable.cs b/src/BlazorDatasheet.Core/Interfaces/IClearable.cs
deleted file mode 100644
index 892a9f52..00000000
--- a/src/BlazorDatasheet.Core/Interfaces/IClearable.cs
+++ /dev/null
@@ -1,10 +0,0 @@
-namespace BlazorDatasheet.Core.Interfaces;
-
-/// <summary>
-/// If a cell's Data implements this, this function will be called when the cell is cleared
-/// in order to perform custom logic for clearing the data.
-/// </summary>
-public interface IClearable
-{
-    public void Clear(string? key);
-}
\ No newline at end of file
diff --git a/src/BlazorDatasheet.Core/Interfaces/IEditorManager.cs b/src/BlazorDatasheet.Core/Interfaces/IEditorManager.cs
deleted file mode 100644
index befa57b3..00000000
--- a/src/BlazorDatasheet.Core/Interfaces/IEditorManager.cs
+++ /dev/null
@@ -1,31 +0,0 @@
-namespace BlazorDatasheet.Core.Interfaces;
-
-public interface IEditorManager
-{
-    /// <summary>
-    /// Gets the actively edited value, that is saved even if an editor is disposed
-    /// </summary>
-    /// <typeparam name="T"></typeparam>
-    /// <returns></returns>
-    T GetEditedValue<T>();
-
-    /// <summary>
-    /// Sets the actively edited value, that is saved even if an editor is disposed
-    /// </summary>
-    /// <param name="value"></param>
-    /// <typeparam name="T"></typeparam>
-    void SetEditedValue<T>(T value);
-
-    /// <summary>
-    /// Accepts the current edit & attempts to set the active cell's value based on the current edited value.
-    /// Applies data validation when setting the value.
-    /// </summary>
-    /// <returns>Whether the accepted edit was successful</returns>
-    bool AcceptEdit();
-
-    /// <summary>
-    /// Cancels the current edit (without setting the active cell's value).
-    /// </summary>
-    /// <returns>Whether the edit has been cancelled</returns>
-    bool CancelEdit();
-}
\ No newline at end of file
diff --git a/src/BlazorDatasheet.Core/Interfaces/IWriteableCell.cs b/src/BlazorDatasheet.Core/Interfaces/IWriteableCell.cs
deleted file mode 100644
index 082e0d4f..00000000
--- a/src/BlazorDatasheet.Core/Interfaces/IWriteableCell.cs
+++ /dev/null
@@ -1,12 +0,0 @@
-using BlazorDatasheet.Core.Formats;
-
-namespace BlazorDatasheet.Core.Interfaces;
-
-public interface IWriteableCell
-{
-    public CellFormat Format { set; }
-    public string Type { set; }
-    public string? Formula { set; }
-    public object? Value { set; }
-    void SetMetaData(string name, object? value);
-}
\ No newline at end of file