Could you support .xls file?

[lwhite1]

Did you look at the Excel importing feature? I'm not sure if it does .xls since that's an older file format.

[hmf]

Late to the party but may be of use to others...

To support "xls", the HSSFWorkbook, HSSFSheet, HSSFRow and HSSFCell classes should be used. Code in:

https://github.com/jtablesaw/tablesaw/blob/1841f041e9d517a332542e1042c2ea261ae83f88/excel/src/main/java/tech/tablesaw/io/xlsx/XlsxReader.java#L119

shows the use of XSSFWorkbook. That and the XSSFSheet, XSSFRow and XSSFCell classes that support xlsx. See https://www.baeldung.com/java-microsoft-excel.

So, not supported. Also may not be so trivial to support it.

HTHs

[hmf]

Found this article that shows that maybe with one simple change it can be supported:

private Workbook getWorkbook(FileInputStream inputStream, String excelFilePath)
        throws IOException {
    Workbook workbook = null;

    if (excelFilePath.endsWith("xlsx")) {
        workbook = new XSSFWorkbook(inputStream);
    } else if (excelFilePath.endsWith("xls")) {
        workbook = new HSSFWorkbook(inputStream);
    } else {
        throw new IllegalArgumentException("The specified file is not Excel file");
    }

    return workbook;
}

One small issue though, POI does not support the raw XML format prior 2003.

[zo-zero-one]

Thanks!

---Original--- From: @.> Date: Fri, Aug 12, 2022 01:23 AM To: @.>; Cc: @.**@.>; Subject: Re: [jtablesaw/tablesaw] Could you support .xls file? (#956)

Found this article that shows that maybe with one simple change it can be supported: private Workbook getWorkbook(FileInputStream inputStream, String excelFilePath) throws IOException { Workbook workbook = null; if (excelFilePath.endsWith("xlsx")) { workbook = new XSSFWorkbook(inputStream); } else if (excelFilePath.endsWith("xls")) { workbook = new HSSFWorkbook(inputStream); } else { throw new IllegalArgumentException("The specified file is not Excel file"); } return workbook; }

One small issue though, POI does not support the raw XML format prior 2003.

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