org.apache.poi.POIXMLException: org.apache.poi.openxml4j.exceptions.InvalidFormatException: Package should contain a content type part [M1.13]

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    org.apache.poi.POIXMLException: org.apache.poi.openxml4j.exceptions.InvalidFormatException: Package should contain a content type part [M1.13]
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    org.apache.poi.POIXMLException: org.apache.poi.openxml4j.exceptions.InvalidFormatException: Package should contain a content type part [M1.13]

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    Root Cause Analysis

    1. org.apache.poi.POIXMLException

      org.apache.poi.openxml4j.exceptions.InvalidFormatException: Package should contain a content type part [M1.13]

      at org.apache.poi.util.PackageHelper.open()
    2. POI
      PackageHelper.open
      1. org.apache.poi.util.PackageHelper.open(PackageHelper.java:41)
      1 frame
    3. Apache POI
      XSSFWorkbook.<init>
      1. org.apache.poi.xssf.usermodel.XSSFWorkbook.<init>(XSSFWorkbook.java:186)
      1 frame