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Microsoft Office Excel 2010 SP2 files are being unexpectedly locked

Last Updated:

Applies to

  • ONTAP 9
  • Data ONTAP 8 7-Mode
  • Microsoft Office 2010 SP2 [Issue may be seen with other versions]


  • The issue is with alternate data streams (ADS) not being closed correctly by the client:
    • Client opens filename.xlsx (Share for: read/write/delete)
    • Client opens ADS to the same file (Share: NONE)
    • Client closes filename.xlsx main handle
    • Client forgets to close the ADS handle
    • For this reason, the opening of the filename.xlsx with DELETE access mask is denied as expected


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