Frequently Asked Questions

XLSX World is a comprehensive toolkit designed to help you quickly convert, merge, split, and inspect Microsoft Excel (.xlsx) and CSV files directly from your browser without needing to install heavy software.

No, you don't need an account. Core features are available immediately, allowing you to optimize your workflow in seconds.

Yes, our standard file processing tools are free to use. We aim to keep basic file manipulation accessible for everyone.

Absolutely. We take your privacy and data security very seriously. Your files are processed securely over encrypted connections safely.

No. Files are only kept temporarily while they are actively being processed by our automated systems and are automatically deleted shortly after your task is complete. We do not inspect or sell your data.

Our core tools support Microsoft Excel files (.xlsx) and Comma Separated Values (.csv). Some specific tools may only accept one format depending on the operation.

To ensure fast processing speeds for all users, we enforce a reasonable file size limit per upload. Most typical spreadsheets will process without any issues.

Conversions usually fail if the file is corrupted, password-protected, or contains intricate macros/formatting that our automated parser cannot read. Try saving the file as a standard, unprotected .xlsx or .csv and trying again.