diff --git a/M02_MasterTemplete/M02_MasterTemplete_Spreadsheet_Trial.css b/M02_MasterTemplete/M02_MasterTemplete_Spreadsheet_Trial.css
deleted file mode 100644
index aca49b93..00000000
--- a/M02_MasterTemplete/M02_MasterTemplete_Spreadsheet_Trial.css
+++ /dev/null
@@ -1,25 +0,0 @@
-/* ⚠ 임시 — [스프레드시트 시험] 화면(1단계 검증 뒤 지움) */
-.m02-trial {
-  display: flex;
-  flex-direction: column;
-  gap: 8px;
-  width: 100%;
-}
-
-.m02-trial__bar {
-  display: flex;
-  align-items: center;
-  justify-content: space-between;
-  gap: 12px;
-}
-
-.m02-trial__note {
-  color: var(--color-text-muted);
-  font-size: 0.85rem;
-}
-
-.m02-trial__sheet {
-  width: 100%;
-  height: 75vh;
-  min-height: 420px;
-}
diff --git a/M02_MasterTemplete/M02_MasterTemplete_Spreadsheet_Trial.ts b/M02_MasterTemplete/M02_MasterTemplete_Spreadsheet_Trial.ts
deleted file mode 100644
index bbe3ffc2..00000000
--- a/M02_MasterTemplete/M02_MasterTemplete_Spreadsheet_Trial.ts
+++ /dev/null
@@ -1,92 +0,0 @@
-/* =============================================================================
- * M02_MasterTemplete_Spreadsheet_Trial.ts
- * ⚠ 임시 — [스프레드시트 시험] 단추(사용자 지시 · 스프레드시트 1단계 검증 뒤 지움:
- *   이 파일 · `M02_MasterTemplete_UI_Main.ts` 의 시험 단추 · Api_Fetch `*SpreadsheetTrial` ·
- *   Router `/spreadsheet-trial` · 저장 자리 `tmp/spreadsheet_trial.json`).
- * 빈 통합문서(시트 셋)를 메인 칸에 넓게 엶 · [시험 저장] = 서버가 같은 엔진으로 다시 풀어 tmp 에 적음.
- * 글자는 이 파일에 둠.
- * ========================================================================== */
-
-import { createButton, el, showToast } from "@ui/ui_template_elements";
-import type { SpreadsheetHandle, Workbook } from "../A00_Common/spreadsheet/spreadsheet";
-import { readSpreadsheetTrial, saveSpreadsheetTrial } from "./M02_MasterTemplete_Api_Fetch";
-import "./M02_MasterTemplete_Spreadsheet_Trial.css";
-
-const TEXT = {
-  save: "시험 저장",
-  note: "임시 시험 화면 — 저장은 서버 tmp 견본 자리(작업 양식과 무관)",
-  saved: "시험 통합문서를 저장했음(서버 재계산)",
-  failed: "스프레드시트 시험 실패 — {value}",
-};
-
-const why = (error: unknown): string => (error instanceof Error ? error.message : String(error));
-
-export interface TrialHandle {
-  getDoc: () => unknown;
-  destroy: () => void;
-}
-
-/** `onDirty` = 고침 있음 · 저장 뒤 없음(페이지의 떠날 때 물음과 이음) */
-export function mountSpreadsheetTrial(
-  host: HTMLElement,
-  onDirty: (dirty: boolean) => void,
-): TrialHandle {
-  let sheet: SpreadsheetHandle | null = null;
-  let alive = true;
-  const save = createButton({ label: TEXT.save, variant: "filled" });
-  const area = el("div", { className: "m02-trial__sheet" });
-  const root = el("div", {
-    className: "m02-trial",
-    children: [
-      el("div", {
-        className: "m02-trial__bar",
-        children: [el("span", { className: "m02-trial__note", text: TEXT.note }), save],
-      }),
-      area,
-    ],
-  });
-  host.replaceChildren(root);
-  const fail = (error: unknown): void =>
-    showToast(TEXT.failed.replace("{value}", why(error)), "error");
-
-  void (async () => {
-    try {
-      const [{ createSpreadsheet }, got] = await Promise.all([
-        import("../A00_Common/spreadsheet/spreadsheet"),
-        readSpreadsheetTrial(),
-      ]);
-      if (!alive) return;
-      sheet = createSpreadsheet(area, got.문서 as Workbook, {
-        onChange: () => onDirty(true),
-        inspect: true, // ⚠ 임시 — 브레인 검증용 문맥(window.__aisloSheet) · 산출근거 카드는 안 넘김
-      });
-    } catch (error) {
-      if (!alive) return;
-      area.replaceChildren(el("p", { className: "m02-trial__empty", text: why(error) }));
-      fail(error);
-    }
-  })();
-
-  save.addEventListener("click", async () => {
-    if (!sheet) return;
-    save.disabled = true;
-    try {
-      await saveSpreadsheetTrial(sheet.getDoc());
-      onDirty(false);
-      showToast(TEXT.saved, "success");
-    } catch (error) {
-      fail(error);
-    } finally {
-      save.disabled = false;
-    }
-  });
-
-  return {
-    getDoc: () => sheet?.getDoc() ?? null,
-    destroy: () => {
-      alive = false;
-      sheet?.destroy();
-      root.remove();
-    },
-  };
-}