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File & Data Tools
Convert and reshape spreadsheets and structured data โ Excel, CSV, XML, and JSON โ directly in your browser. Preserve leading zeros, split large files by row count, flatten nested XML, and more, with no file leaving your device.
Related guides
File & Data
How to Split a CSV File
Split a CSV file into smaller CSV files locally in your browser: choose rows per file or number of files, keep the header row, and download one file or a ZIP.
Read guide โFile & DataHow to Split an Excel Workbook
Split one Excel workbook into separate XLSX files by worksheet in your browser: select visible sheets, review filenames, and download one file or a ZIP.
Read guide โFile & DataCSV to Excel Without Uploading
Learn how browser-based CSV to Excel keeps table data on your device, what still leaves the machine, and how local conversion differs from upload services.
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