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React File Upload Spreadsheet Preview Block

A spreadsheet upload block for React and Next.js with tabular data preview of first rows and columns, multi-sheet tab selector, row and column counts, and automatic data type detection per column using shadcn/ui Button, Badge, and Tailwind CSS

Upload and preview spreadsheet data with this React and Next.js block. Drag or select an Excel or CSV file to see a mini table of the first rows and columns, switch between multiple sheets using tab selectors, view row and column counts, and see automatic data type detection per column. Built with TypeScript, shadcn/ui Button and Badge components, and Tailwind CSS. Ideal for data import flows, ETL pipelines, CSV upload tools, and any application that needs to preview tabular data before processing.

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Last updated on March 24, 2026

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