import openpyxl, os, glob

base = r'C:\Users\renet\.openclaw\workspace\buchhaltungs-app'
for f in glob.glob(os.path.join(base, '*.xlsx')):
    try:
        wb = openpyxl.load_workbook(f, data_only=True)
        name = os.path.basename(f)
        print(f'\n=== {name} ===')
        print(f'Sheets: {wb.sheetnames}')
        for sn in wb.sheetnames:
            ws = wb[sn]
            print(f'  Sheet "{sn}": {ws.max_row}r x {ws.max_column}c')
            for row in ws.iter_rows(min_row=1, max_row=min(ws.max_row, 50), values_only=False):
                vals = [(c.value, c.coordinate) for c in row if c.value is not None]
                if vals:
                    print(f'    {vals}')
    except Exception as e:
        print(f'ERROR {os.path.basename(f)}: {e}')