CSV Upload

Importing data in bulk from a local spreadsheet is a standard requirement for many enterprise applications. While tools like Data Loader handle this out of the box, developers often need to build custom, self-service tools that allow end-users to upload and process CSV files directly from a custom page layout. In plain words: You can create a file upload interface using Visualforce, capture the file content as a binary blob, and use an Apex controller to parse the text data line-by-line. The code converts those text rows into Salesforce objects (like Contact records) and inserts them into the database in bulk.

In plain words: A CSV Uploader Component in LWC allows users to import spreadsheet data directly into Salesforce without navigating through standard data import wizards. The component accepts a .csv file, uploads it via Salesforce Files, and passes the generated document ID to an Apex controller that parses rows and commits new records in bulk. Importing data quickly from external systems is a standard business requirement. While administrators have access to tools like the Data Import Wizard and Data Loader, business users often need a simple, self-service interface on their home page or record view to import structured spreadsheets. Building a custom CSV import utility in Lightning Web Components gives teams immediate data creation capabilities wrapped in custom validation logic.