diff --git a/xlsx/scripts/recalc.py b/xlsx/scripts/recalc.py
new file mode 100644
index 0000000..f472e9a
--- /dev/null
+++ b/xlsx/scripts/recalc.py
@@ -0,0 +1,184 @@
+"""
+Excel Formula Recalculation Script
+Recalculates all formulas in an Excel file using LibreOffice
+"""
+
+import json
+import os
+import platform
+import subprocess
+import sys
+from pathlib import Path
+
+from office.soffice import get_soffice_env
+
+from openpyxl import load_workbook
+
+MACRO_DIR_MACOS = "~/Library/Application Support/LibreOffice/4/user/basic/Standard"
+MACRO_DIR_LINUX = "~/.config/libreoffice/4/user/basic/Standard"
+MACRO_FILENAME = "Module1.xba"
+
+RECALCULATE_MACRO = """<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE script:module PUBLIC "-//OpenOffice.org//DTD OfficeDocument 1.0//EN" "module.dtd">
+<script:module xmlns:script="http://openoffice.org/2000/script" script:name="Module1" script:language="StarBasic">
+    Sub RecalculateAndSave()
+      ThisComponent.calculateAll()
+      ThisComponent.store()
+      ThisComponent.close(True)
+    End Sub
+</script:module>"""
+
+
+def has_gtimeout():
+    try:
+        subprocess.run(
+            ["gtimeout", "--version"], capture_output=True, timeout=1, check=False
+        )
+        return True
+    except (FileNotFoundError, subprocess.TimeoutExpired):
+        return False
+
+
+def setup_libreoffice_macro():
+    macro_dir = os.path.expanduser(
+        MACRO_DIR_MACOS if platform.system() == "Darwin" else MACRO_DIR_LINUX
+    )
+    macro_file = os.path.join(macro_dir, MACRO_FILENAME)
+
+    if (
+        os.path.exists(macro_file)
+        and "RecalculateAndSave" in Path(macro_file).read_text()
+    ):
+        return True
+
+    if not os.path.exists(macro_dir):
+        subprocess.run(
+            ["soffice", "--headless", "--terminate_after_init"],
+            capture_output=True,
+            timeout=10,
+            env=get_soffice_env(),
+        )
+        os.makedirs(macro_dir, exist_ok=True)
+
+    try:
+        Path(macro_file).write_text(RECALCULATE_MACRO)
+        return True
+    except Exception:
+        return False
+
+
+def recalc(filename, timeout=30):
+    if not Path(filename).exists():
+        return {"error": f"File {filename} does not exist"}
+
+    abs_path = str(Path(filename).absolute())
+
+    if not setup_libreoffice_macro():
+        return {"error": "Failed to setup LibreOffice macro"}
+
+    cmd = [
+        "soffice",
+        "--headless",
+        "--norestore",
+        "vnd.sun.star.script:Standard.Module1.RecalculateAndSave?language=Basic&location=application",
+        abs_path,
+    ]
+
+    if platform.system() == "Linux":
+        cmd = ["timeout", str(timeout)] + cmd
+    elif platform.system() == "Darwin" and has_gtimeout():
+        cmd = ["gtimeout", str(timeout)] + cmd
+
+    result = subprocess.run(cmd, capture_output=True, text=True, env=get_soffice_env())
+
+    if result.returncode != 0 and result.returncode != 124:  
+        error_msg = result.stderr or "Unknown error during recalculation"
+        if "Module1" in error_msg or "RecalculateAndSave" not in error_msg:
+            return {"error": "LibreOffice macro not configured properly"}
+        return {"error": error_msg}
+
+    try:
+        wb = load_workbook(filename, data_only=True)
+
+        excel_errors = [
+            "#VALUE!",
+            "#DIV/0!",
+            "#REF!",
+            "#NAME?",
+            "#NULL!",
+            "#NUM!",
+            "#N/A",
+        ]
+        error_details = {err: [] for err in excel_errors}
+        total_errors = 0
+
+        for sheet_name in wb.sheetnames:
+            ws = wb[sheet_name]
+            for row in ws.iter_rows():
+                for cell in row:
+                    if cell.value is not None and isinstance(cell.value, str):
+                        for err in excel_errors:
+                            if err in cell.value:
+                                location = f"{sheet_name}!{cell.coordinate}"
+                                error_details[err].append(location)
+                                total_errors += 1
+                                break
+
+        wb.close()
+
+        result = {
+            "status": "success" if total_errors == 0 else "errors_found",
+            "total_errors": total_errors,
+            "error_summary": {},
+        }
+
+        for err_type, locations in error_details.items():
+            if locations:
+                result["error_summary"][err_type] = {
+                    "count": len(locations),
+                    "locations": locations[:20],  
+                }
+
+        wb_formulas = load_workbook(filename, data_only=False)
+        formula_count = 0
+        for sheet_name in wb_formulas.sheetnames:
+            ws = wb_formulas[sheet_name]
+            for row in ws.iter_rows():
+                for cell in row:
+                    if (
+                        cell.value
+                        and isinstance(cell.value, str)
+                        and cell.value.startswith("=")
+                    ):
+                        formula_count += 1
+        wb_formulas.close()
+
+        result["total_formulas"] = formula_count
+
+        return result
+
+    except Exception as e:
+        return {"error": str(e)}
+
+
+def main():
+    if len(sys.argv) < 2:
+        print("Usage: python recalc.py <excel_file> [timeout_seconds]")
+        print("\nRecalculates all formulas in an Excel file using LibreOffice")
+        print("\nReturns JSON with error details:")
+        print("  - status: 'success' or 'errors_found'")
+        print("  - total_errors: Total number of Excel errors found")
+        print("  - total_formulas: Number of formulas in the file")
+        print("  - error_summary: Breakdown by error type with locations")
+        print("    - #VALUE!, #DIV/0!, #REF!, #NAME?, #NULL!, #NUM!, #N/A")
+        sys.exit(1)
+
+    filename = sys.argv[1]
+    timeout = int(sys.argv[2]) if len(sys.argv) > 2 else 30
+
+    result = recalc(filename, timeout)
+    print(json.dumps(result, indent=2))
+
+
+if __name__ == "__main__":
+    main()