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    Type:Bug 
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    Resolution: Fixed
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    Priority:Normal 
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    Affects Version/s: 5.5.0
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    Component/s: None
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    Security Level: Jimmy
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    None
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        None
Steps to Reproduce
1. export the attached file with keikai
2. open the exported file with Excel 
Current Result
  
 
Expected Result
open it without alert
Debug Information
- the root cause is the X-axis label, if they reference a date cell, the exported file has problems
workaround
set those date cells for X-axis as text format