The File Format and Extension of [filename].xls Don't Match. The File could be Corrupted or Unsafe (Doc ID 2257766.1)

Last updated on APRIL 24, 2017

Applies to:

Oracle WebCenter Content - Version 11.1.1.9.0 and later
Information in this document applies to any platform.

Symptoms

ISSUE
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When any Office file is opened on the Content Server, the Office application such as Microsoft Excel displays a prompt. After clicking OK, the file opens.


ERROR
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"The file format and extension of [filename].xls don't match. The file could be corrupted or unsafe. Unless you trust its source, don't open it. Do you want to open it anyway?"


STEPS TO REPLICATE
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n/a


BUSINESS IMPACT
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Users unable to open any of the .xls files without a prompt.

Cause

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