Upon running a conversion where you are appending the output to an existing file, you may encounter the error "Cannot append: file is read-only".

This error message indicates that there is an issue with the file you are attempting to append to.

The first thing you should check is that all instances of Excel are closed, particularly the file you are attempting to append to. This is because Excel locks files when they are open, preventing other programs from making changes to them.

If all instances of Excel are closed and you are still receiving this error message, there could be a problem with your Office application or there is a security issue with the PDF you are trying to convert.

In this case, we recommend trying to convert the PDF into a new Excel file. If that fails, attempt a conversion to .CSV. If you are not able to convert to Excel, but you can convert to .CSV, this points to the issue being with your Excel program and a reinstall may be necessary.

If none of the above appears to be the problem, we will need you to send us a copy of your PDF file so we can analyze it. Please send it to [email protected].