diff --git a/Userland/Applications/Spreadsheet/JSIntegration.cpp b/Userland/Applications/Spreadsheet/JSIntegration.cpp
index 85d4f35346..0015f6eff2 100644
--- a/Userland/Applications/Spreadsheet/JSIntegration.cpp
+++ b/Userland/Applications/Spreadsheet/JSIntegration.cpp
@@ -356,7 +356,7 @@ JS_DEFINE_NATIVE_FUNCTION(SheetGlobalObject::get_column_bound)
 }
 
 WorkbookObject::WorkbookObject(Workbook& workbook)
-    : JS::Object(*JS::Object::create(workbook.global_object(), workbook.global_object().object_prototype()))
+    : JS::Object(*JS::Object::create(workbook.vm().interpreter().global_object(), workbook.vm().interpreter().global_object().object_prototype()))
     , m_workbook(workbook)
 {
 }
diff --git a/Userland/Applications/Spreadsheet/Spreadsheet.cpp b/Userland/Applications/Spreadsheet/Spreadsheet.cpp
index beaa6fc38e..83f8296c54 100644
--- a/Userland/Applications/Spreadsheet/Spreadsheet.cpp
+++ b/Userland/Applications/Spreadsheet/Spreadsheet.cpp
@@ -17,6 +17,7 @@
 #include <AK/TemporaryChange.h>
 #include <AK/URL.h>
 #include <LibCore/File.h>
+#include <LibJS/Interpreter.h>
 #include <LibJS/Parser.h>
 #include <LibJS/Runtime/FunctionObject.h>
 #include <ctype.h>
@@ -38,16 +39,13 @@ Sheet::Sheet(StringView name, Workbook& workbook)
 
 Sheet::Sheet(Workbook& workbook)
     : m_workbook(workbook)
+    , m_interpreter(JS::Interpreter::create<SheetGlobalObject>(m_workbook.vm(), *this))
 {
-    JS::DeferGC defer_gc(m_workbook.interpreter().heap());
-    m_global_object = m_workbook.interpreter().heap().allocate_without_global_object<SheetGlobalObject>(*this);
-    global_object().initialize_global_object();
+    JS::DeferGC defer_gc(m_workbook.vm().heap());
+    m_global_object = static_cast<SheetGlobalObject*>(&m_interpreter->global_object());
     global_object().define_direct_property("workbook", m_workbook.workbook_object(), JS::default_attributes);
     global_object().define_direct_property("thisSheet", &global_object(), JS::default_attributes); // Self-reference is unfortunate, but required.
 
-    // Note: We have to set the global object here otherwise the functions in runtime.js are not registered correctly.
-    interpreter().realm().set_global_object(global_object(), &global_object());
-
     // Sadly, these have to be evaluated once per sheet.
     auto file_or_error = Core::File::open("/res/js/Spreadsheet/runtime.js", Core::OpenMode::ReadOnly);
     if (!file_or_error.is_error()) {
@@ -77,7 +75,7 @@ Sheet::~Sheet()
 
 JS::Interpreter& Sheet::interpreter() const
 {
-    return m_workbook.interpreter();
+    return const_cast<JS::Interpreter&>(*m_interpreter);
 }
 
 size_t Sheet::add_row()
diff --git a/Userland/Applications/Spreadsheet/Spreadsheet.h b/Userland/Applications/Spreadsheet/Spreadsheet.h
index 69248dff8b..213131185d 100644
--- a/Userland/Applications/Spreadsheet/Spreadsheet.h
+++ b/Userland/Applications/Spreadsheet/Spreadsheet.h
@@ -147,6 +147,8 @@ private:
     Workbook& m_workbook;
     mutable SheetGlobalObject* m_global_object;
 
+    NonnullOwnPtr<JS::Interpreter> m_interpreter;
+
     Cell* m_current_cell_being_evaluated { nullptr };
 
     HashTable<Cell*> m_visited_cells_in_update;
diff --git a/Userland/Applications/Spreadsheet/Workbook.cpp b/Userland/Applications/Spreadsheet/Workbook.cpp
index 65f269a209..b6d90dd0af 100644
--- a/Userland/Applications/Spreadsheet/Workbook.cpp
+++ b/Userland/Applications/Spreadsheet/Workbook.cpp
@@ -17,21 +17,24 @@
 
 namespace Spreadsheet {
 
-static JS::VM& global_vm()
-{
-    static RefPtr<JS::VM> vm;
-    if (!vm)
-        vm = JS::VM::create();
-    return *vm;
-}
-
 Workbook::Workbook(NonnullRefPtrVector<Sheet>&& sheets)
     : m_sheets(move(sheets))
-    , m_interpreter(JS::Interpreter::create<JS::GlobalObject>(global_vm()))
-    , m_interpreter_scope(JS::VM::InterpreterExecutionScope(interpreter()))
+    , m_vm(JS::VM::create())
+    , m_interpreter(JS::Interpreter::create<JS::GlobalObject>(m_vm))
+    , m_interpreter_scope(*m_interpreter)
+    , m_main_execution_context(m_vm->heap())
 {
-    m_workbook_object = interpreter().heap().allocate<WorkbookObject>(global_object(), *this);
-    global_object().define_direct_property("workbook", workbook_object(), JS::default_attributes);
+    m_workbook_object = m_vm->heap().allocate<WorkbookObject>(m_interpreter->global_object(), *this);
+    m_interpreter->global_object().define_direct_property("workbook", workbook_object(), JS::default_attributes);
+
+    m_main_execution_context.current_node = nullptr;
+    m_main_execution_context.this_value = &m_interpreter->global_object();
+    m_main_execution_context.function_name = "(global execution context)"sv;
+    m_main_execution_context.lexical_environment = &m_interpreter->realm().global_environment();
+    m_main_execution_context.variable_environment = &m_interpreter->realm().global_environment();
+    m_main_execution_context.realm = &m_interpreter->realm();
+    m_main_execution_context.is_strict_mode = true;
+    MUST(m_vm->push_execution_context(m_main_execution_context, m_interpreter->global_object()));
 }
 
 bool Workbook::set_filename(const String& filename)
diff --git a/Userland/Applications/Spreadsheet/Workbook.h b/Userland/Applications/Spreadsheet/Workbook.h
index a2831ace4e..99206d0e6b 100644
--- a/Userland/Applications/Spreadsheet/Workbook.h
+++ b/Userland/Applications/Spreadsheet/Workbook.h
@@ -37,19 +37,17 @@ public:
         return *sheet;
     }
 
-    JS::Interpreter& interpreter() { return *m_interpreter; }
-    const JS::Interpreter& interpreter() const { return *m_interpreter; }
-
-    JS::GlobalObject& global_object() { return m_interpreter->global_object(); }
-    const JS::GlobalObject& global_object() const { return m_interpreter->global_object(); }
-
     WorkbookObject* workbook_object() { return m_workbook_object; }
+    JS::VM& vm() { return *m_vm; }
+    JS::VM const& vm() const { return *m_vm; }
 
 private:
     NonnullRefPtrVector<Sheet> m_sheets;
+    NonnullRefPtr<JS::VM> m_vm;
     NonnullOwnPtr<JS::Interpreter> m_interpreter;
     JS::VM::InterpreterExecutionScope m_interpreter_scope;
     WorkbookObject* m_workbook_object { nullptr };
+    JS::ExecutionContext m_main_execution_context;
 
     String m_current_filename;
     bool m_dirty { false };