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  • Export to Excel gives the follow error: Invalid char (/) found at index (25) in sheet name


    Paul Jimenez
    • Version: v7.1 Product: JasperReports® Server

    Issue:

    When exporting to excel, you may see the following error in JasperReports Server:

    [toc]
    Invalid char (/) found at index (25) in sheet name 'Report1/Report1A'
    java.lang.IllegalArgumentException: Invalid char (/) found at index (25) in sheet name 'Report1/Report1A'
    


    Solution:

    This is due to an excel restriction. There are characters you cannot use in a worksheet. Otherwise you will get an error. All of the following characters you cannot use in a Excel worksheet:

    \ / * [ ] : ?
    


    ref: 01602527


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