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We can't tell you without seeing your code
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puneet kumar

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when i m generating .xlsx file it's genrating perfectly but every time some header name is missing .<br />
suppose 20 column is there in a xlsx file some time 1or 2 or 3 header name was missing .<br />
data are coming but only header name is missing there please let me know what is the issue.
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when i m generating .xlsx file it's genrating perfectly but every time some header name is missing .
suppose 20 column is there in a xlsx file some time 1or 2 or 3 header name was missing .
data are coming but only header name is missing there please let me know what is the issue.

header name was missing while generating .xlsx file with the help of apache poi.

servlet

Java is a platform-independent, object-oriented programming language and run-time environment, designed to have as few implementation dependencies as possible such that developers can write one set of code across all platforms using libraries. Most devices will not run Java natively, and require a run-time component to be installed in order to execute a Java program.

Java

Java Enterprise Edition (Java EE) is a specification defining a collection of Java-based server and client technologies and how they interoperate. Java EE specifies server and client architectures and uses profiles to define technology sets targeted at specific classes of applications. All Java EE profiles share a set of common features, such as naming and resource injection, packaging rules and security requirements.

Java EE

JavaServer Pages (JSP) allow the development of dynamically generated web pages. It uses the Java programming language; JSP pages are translated into servlets at runtime, with each servlet being cached and reused until the JSP is modified. JSP allows Java code to be interleaved with static web markup content, so the resulting page can be compiled and executed on the server to deliver the content.