last worksheet is invisible
I've encountered the following strange problem. I have an Excel 2007 workbook that contains 19 worksheets. When I check the names of the worksheets via
book.get_sheet_names(), only the first 18 worksheets are listed. If I move the
last worksheet to the beginning, its name appears, but the new last worksheet is
no longer listed. If I delete a worksheet, so that there are only 18, then only
the first 17 are listed. I've read that openpyxl has issues with workbooks that
contain charts, but the "invisible" worksheet does not contain a chart.