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Importing a CSV file using Apex and Visualforce

Here is an example of importing a CSV file using Apex and Visualforce. Depending on your requirements, you may need to enhance this solution with additional error handling, validation, and business logic. Visualforce Page- <apex:page controller="demoImportDataFromCSV">     <apex:form >         <apex:pagemessages />         <apex:pageBlock >             <apex:pageBlockSection columns="2">                    <apex:inputFile value="{!csvFileBody}"  filename="{!csvAsString}"/>                   <apex:commandButton value="Import Product" action="{!importCSVFile}"/>             </apex:pageBlockSection>         </apex:pageBlock>         <apex:pageBlock >           ...