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Excel Split & Prepare Toolkit

Split Excel/CSV files by rows, sheets, or columns, limit cell content to a set number of characters/digits, format phone numbers for bulk SMS sending, and exclude numbers shared between two files — all processed locally in your browser. Running the tool requires an account; the free account includes 10 one-time operations on eligible tools.

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Drop an Excel or CSV file, or click

XLSX · XLS · CSV

🔒 Processed locally in your browser — no file is sent to our servers
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About Excel Split & Prepare Toolkit

Split Excel/CSV files by rows, sheets, or columns, limit cell content to a set number of characters/digits, format phone numbers for bulk SMS sending, and exclude numbers shared between two files — all processed locally in your browser

Frequently Asked Questions

How do I start using this tool?

You can preview the tool without an account. Running it requires an account; the free account includes 10 one-time operations, with plans for ongoing use.

How does this tool handle my data?

Processing varies by tool: file editing tools process selected files in the browser, while others may call a server or external provider. Check the tool description and privacy policy before entering sensitive data.

Does this tool work on mobile devices?

The site adapts to mobile and desktop screens, but some functions depend on browser and device support.

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