diff --git a/.claude/settings.local.json b/.claude/settings.local.json
index 3a20db1..1c731c7 100644
--- a/.claude/settings.local.json
+++ b/.claude/settings.local.json
@@ -8,7 +8,11 @@
       "Bash(pip install:*)",
       "Bash(tasklist:*)",
       "Bash(wmic process:*)",
-      "Bash(taskkill:*)"
+      "Bash(taskkill:*)",
+      "Bash(C:Pythonpython.exe -c \"import pymysql; conn = pymysql.connect\\(host=''192.168.1.76'', port=3306, user=''root'', password='''', db=''OrdinaceDropBoxBackup''\\); cur = conn.cursor\\(\\); cur.execute\\(''SELECT * FROM runs''\\); print\\(cur.fetchall\\(\\)\\); cur.execute\\(''SELECT COUNT\\(*\\) FROM files''\\); print\\(''files count:'', cur.fetchone\\(\\)\\); conn.close\\(\\)\")",
+      "Bash(/c/Python/python.exe -c \"import pymysql; conn = pymysql.connect\\(host=''192.168.1.76'', port=3306, user=''root'', password='''', db=''OrdinaceDropBoxBackup''\\); cur = conn.cursor\\(\\); cur.execute\\(''SELECT * FROM runs''\\); print\\(''RUNS:'', cur.fetchall\\(\\)\\); cur.execute\\(''SELECT COUNT\\(*\\) FROM files''\\); print\\(''FILES count:'', cur.fetchone\\(\\)\\); conn.close\\(\\)\")",
+      "Bash(/c/Python/python.exe -c \"import pymysql; conn = pymysql.connect\\(host=''192.168.1.76'', port=3306, user=''root'', password=''Vlado9674+'', db=''OrdinaceDropBoxBackup''\\); cur = conn.cursor\\(\\); cur.execute\\(''SELECT * FROM runs''\\); rows = cur.fetchall\\(\\); print\\(''RUNS:''\\); [print\\(r\\) for r in rows]; cur.execute\\(''SELECT COUNT\\(*\\) FROM files''\\); print\\(''FILES count:'', cur.fetchone\\(\\)[0]\\); cur.execute\\(''SELECT COUNT\\(*\\) FROM file_events''\\); print\\(''EVENTS count:'', cur.fetchone\\(\\)[0]\\); conn.close\\(\\)\")",
+      "Bash(/c/Python/python.exe:*)"
     ]
   }
 }
diff --git a/backup_report.xlsx b/backup_report.xlsx
new file mode 100644
index 0000000..81709f3
Binary files /dev/null and b/backup_report.xlsx differ
diff --git a/indexer/config.py b/indexer/config.py
index a8bf2b0..bdb01d0 100644
--- a/indexer/config.py
+++ b/indexer/config.py
@@ -29,5 +29,5 @@ BACKUP_PATH = os.getenv("BACKUP_PATH")
 # Behaviour
 # =========================
 
-DRY_RUN = os.getenv("DRY_RUN", "1") == "1"
+DRY_RUN = os.getenv("DRY_RUN", "true").lower() in ("1", "true", "yes")
 BATCH_SIZE = int(os.getenv("BATCH_SIZE", 1000))
diff --git a/indexer/db.py b/indexer/db.py
index ac4cae1..f2a9ea9 100644
--- a/indexer/db.py
+++ b/indexer/db.py
@@ -79,10 +79,15 @@ def batch_insert_files(cur, files_list: list, run_id: int) -> dict:
               f["size"], f["mtime"], f["content_hash"], run_id, run_id)
              for f in chunk]
         )
-        # pymysql executemany: lastrowid = first id in batch
-        first_id = cur.lastrowid
-        for j, f in enumerate(chunk):
-            path_to_id[f["relative_path"]] = first_id + j
+        # Fetch real IDs — lastrowid+j is unreliable with executemany
+        paths = [f["relative_path"] for f in chunk]
+        placeholders = ",".join(["%s"] * len(paths))
+        cur.execute(
+            f"SELECT id, relative_path FROM files WHERE relative_path IN ({placeholders})",
+            paths,
+        )
+        for row in cur.fetchall():
+            path_to_id[row[1]] = row[0]
     return path_to_id
 
 
diff --git a/indexer/scanner.py b/indexer/scanner.py
index a4a50fe..2e0d468 100644
--- a/indexer/scanner.py
+++ b/indexer/scanner.py
@@ -20,11 +20,14 @@ def scan_files(root_path: str) -> dict:
                 continue
             rel_path = os.path.relpath(full_path, root_path).replace("\\", "/")
             rel_dir = os.path.relpath(root, root_path).replace("\\", "/")
+            # Truncate microseconds — MySQL DATETIME rounds to whole seconds,
+            # which causes false "modified" detections on every run.
+            mtime = datetime.fromtimestamp(stat.st_mtime).replace(microsecond=0)
             result[rel_path] = {
                 "full_path": full_path,
                 "file_name": name,
                 "directory": rel_dir,
                 "size": stat.st_size,
-                "mtime": datetime.fromtimestamp(stat.st_mtime),
+                "mtime": mtime,
             }
     return result
diff --git a/main.py b/main.py
index 5fb17d7..5c974bb 100644
--- a/main.py
+++ b/main.py
@@ -1,3 +1,6 @@
+import os
+from datetime import datetime
+
 from indexer.config import ROOT_PATH, ROOT_NAME, DRY_RUN, BACKUP_PATH
 from indexer.scanner import scan_files
 from indexer.hasher import blake3_file
@@ -195,6 +198,18 @@ def main():
     print(f"Unchanged: {stats['unchanged']}")
     print("=" * 60)
 
+    # ── 8. Generate Excel report ──
+    try:
+        from report import generate_report
+
+        report_dir = r"u:\Dropbox\!!!Days\Downloads Z230"
+        timestamp = datetime.now().strftime("%Y-%m-%d %H_%M")
+        report_path = os.path.join(report_dir, f"{timestamp} DropboxBackupReport.xlsx")
+        print(f"\n[8] Generating report...")
+        generate_report(report_path)
+    except Exception as e:
+        print(f"  WARN: Report generation failed: {e}")
+
 
 if __name__ == "__main__":
     main()
diff --git a/report.py b/report.py
new file mode 100644
index 0000000..84d59f2
--- /dev/null
+++ b/report.py
@@ -0,0 +1,122 @@
+"""
+Generate Excel report of backup runs and file events.
+
+Usage: python report.py [output.xlsx]
+
+Single sheet with all events from all runs.
+Skips runs where total events > THRESHOLD (mass initial imports).
+"""
+
+import os
+import sys
+from datetime import datetime as dt
+import pymysql
+from openpyxl import Workbook
+from openpyxl.styles import Font, PatternFill, Alignment, Border, Side
+from openpyxl.utils import get_column_letter
+from indexer.config import DB_CONFIG
+
+THRESHOLD = 5000  # skip runs with more events than this
+
+
+def generate_report(output_path: str):
+    conn = pymysql.connect(**DB_CONFIG)
+    cur = conn.cursor()
+
+    # ── 1. Load runs ──
+    cur.execute("SELECT * FROM runs ORDER BY id")
+    runs = cur.fetchall()
+
+    # ── 2. Collect all events from non-skipped runs ──
+    all_events = []
+    skipped_runs = []
+    for run in runs:
+        run_id, started, finished, status, total, new, mod, deleted, unchanged = run
+        total_changes = new + mod + deleted
+        if total_changes > THRESHOLD:
+            skipped_runs.append(run_id)
+            continue
+        cur.execute(
+            """SELECT fe.event_type, f.relative_path, f.file_name, f.directory,
+                      fe.old_size, fe.new_size
+               FROM file_events fe
+               JOIN files f ON fe.file_id = f.id
+               WHERE fe.run_id = %s
+               ORDER BY fe.event_type, f.relative_path""",
+            (run_id,)
+        )
+        for ev in cur.fetchall():
+            all_events.append((run_id, started, *ev))
+
+    conn.close()
+
+    # ── 3. Build Excel — single sheet ──
+    wb = Workbook()
+    ws = wb.active
+    ws.title = "Events"
+
+    header_font = Font(bold=True, color="FFFFFF", size=11)
+    header_fill = PatternFill(start_color="4472C4", end_color="4472C4", fill_type="solid")
+    thin_border = Border(
+        left=Side(style="thin"), right=Side(style="thin"),
+        top=Side(style="thin"), bottom=Side(style="thin"),
+    )
+
+    type_fills = {
+        "CREATED": PatternFill(start_color="E2EFDA", end_color="E2EFDA", fill_type="solid"),
+        "MODIFIED": PatternFill(start_color="FFF2CC", end_color="FFF2CC", fill_type="solid"),
+        "DELETED": PatternFill(start_color="FCE4EC", end_color="FCE4EC", fill_type="solid"),
+    }
+
+    headers = ["Run #", "Run Time", "Event", "Path", "File Name", "Directory",
+               "Old Size", "New Size", "Size Change"]
+    for col, h in enumerate(headers, 1):
+        cell = ws.cell(row=1, column=col, value=h)
+        cell.font = header_font
+        cell.fill = header_fill
+        cell.alignment = Alignment(horizontal="center")
+        cell.border = thin_border
+
+    for row_idx, ev in enumerate(all_events, 2):
+        run_id, started, event_type, rel_path, file_name, directory, old_size, new_size = ev
+
+        size_change = ""
+        if old_size is not None and new_size is not None:
+            diff = new_size - old_size
+            if diff != 0:
+                size_change = f"{'+' if diff > 0 else ''}{diff:,}"
+        elif new_size is not None:
+            size_change = f"+{new_size:,}"
+        elif old_size is not None:
+            size_change = f"-{old_size:,}"
+
+        values = [run_id, started, event_type, rel_path, file_name, directory,
+                  old_size, new_size, size_change]
+
+        fill = type_fills.get(event_type)
+        for col, val in enumerate(values, 1):
+            cell = ws.cell(row=row_idx, column=col, value=val)
+            cell.border = thin_border
+            if fill:
+                cell.fill = fill
+
+    # Auto-width
+    widths = [8, 18, 10, 60, 30, 40, 12, 12, 14]
+    for col, w in enumerate(widths, 1):
+        ws.column_dimensions[get_column_letter(col)].width = w
+
+    # Autofilter
+    ws.auto_filter.ref = f"A1:{get_column_letter(len(headers))}{len(all_events) + 1}"
+
+    wb.save(output_path)
+    print(f"Report saved to {output_path}")
+    print(f"  Runs total: {len(runs)}, skipped: {len(skipped_runs)} (threshold: {THRESHOLD})")
+    print(f"  Events: {len(all_events)} rows")
+
+
+if __name__ == "__main__":
+    REPORT_DIR = r"u:\Dropbox\!!!Days\Downloads Z230"
+    timestamp = dt.now().strftime("%Y-%m-%d %H_%M")
+    default_name = f"{timestamp} DropboxBackupReport.xlsx"
+    output = sys.argv[1] if len(sys.argv) > 1 else os.path.join(REPORT_DIR, default_name)
+    generate_report(output)