QUESTION   What causes the "Preview generation failed. File conversion failed." error when trying to view file via Workplace Online?

ANSWER  The error can be caused by one of the following:

If you get a "Preview generation failed. File conversion failed." error when attempting to preview a file via the Workplace Online, the cause may be one of the following reasons:

• The file type is not supported for previewing. Refer to What file types can I view via Workplace Online and the Workplace mobile app? for supported files types.
• The file is password protected.
• The file has macros or other elements that prompt the user for action prior to the file being opened.

If the file is supported, enable the preview via Workplace Online by disabling the file password protection or the element that is causing a prompt when the file is opened.