If you are printing to PDF using Adobe PDF Writer, the setting that determines whether PDF files are opened after printing can be found within the printer settings. If you configure the PDF printer not to open the file after printing, you should work around this problem.
If you're using Excel's Save As dialog to save as PDF, you'll find the option within the dialog:
For more on saving Excel files to PDF, see the video lesson: Essential Skills Lesson 1-7 Understand common file formats.
If you disable the option to open the PDF after printing, it should resolve the problem.
Please feel free to reply if you have any more questions about this.
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