Install Zayenha Tools on your device
Quick access from your home screenSplit 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. Enter the required data in the fields, then get your result instantly. It all runs directly in your browser; your files are never sent to an external server. Free, with a one-time grant of 10 free operations.
Drop an Excel or CSV file, or click
XLSX · XLS · CSV
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
Yes, Excel Split & Prepare Toolkit is free. Registered users get 10 free operations, once, at no cost. Guests can preview the tool; running it needs a free account.
Yes, completely. Excel Split & Prepare Toolkit runs entirely inside your browser — your files and data are never sent to any external server and never leave your device.
Yes, the tool is fully responsive and works smoothly on all devices — mobile, tablet, and desktop. You can also install Zayenha Tools as an app on your device.
Only an initial connection is needed to load the page. After that, all data processing runs entirely on your device without requiring a continuous connection.