The error message "We found a problem with some content in 'filename.xlsx'. Do you want us to try to recover as much as we can? If you trust the source of this workbook, click Yes." is shown. Opening the file, the contents are output as empty.

The application may not support the output pattern. Check the following.

• If the file has a complex layout, simplify the layout.
• Delete unused rows and columns in the template file. Excel normally saves rows with values and formatting, but for some reason an empty row may be recognized as a used cell and a large number of unnecessary rows are saved.
• Check the hidden and unnecessary sheets in the template file, and delete them.
• If Office functions (Graphs/Pivot tables, etc.) are used, remove Office functions.
• If images are included in the template file, reduce the file size of the images by lowering the image quality.