Spreadsheet Locker

Welcome to the Spreadsheet Locker Knowledge Base – your comprehensive resource for securely managing and protecting spreadsheet files while you work. In this guide, we’ll walk you through the process of applying password protection to a wide variety of file types, ensuring that your sensitive data remains confidential and safe from unauthorized access. Whether you’re handling everyday business reports, detailed analytical models, or even less common formats, Spreadsheet Locker provides a seamless, user‑friendly experience that integrates directly into your workflow. By following the steps outlined here, you’ll learn how to convert any supported input file into a protected spreadsheet, giving you peace of mind knowing that your information is encrypted and guarded by a password of your choosing.

Supported Input Formats Spreadsheet Locker is designed to accept an extensive range of file types, allowing you to protect files regardless of how they were originally created or stored. The platform can ingest any of the following formats: Xlsx, Xlsb, Xlsm, Xltm, Xlam, Excel97To2003, Excel95, SpreadsheetML, Xlt, Csv, Tsv, SqlScript, Dif, Xml, Epub, Azw3, Html, MHtml, and Json. This flexibility means you can bring in data from modern Office suites, legacy Excel versions, plain‑text delimited files, database scripts, markup languages, e‑book formats, and even structured data files like JSON, all of which can be transformed into a secure, password‑protected spreadsheet. No matter the source, Spreadsheet Locker will intelligently parse the content, preserving the structure and data integrity during the protection process.

Resulting Protected Formats After you have set a password, the output is generated in one of the widely‑supported, protection‑enabled spreadsheet formats. You can choose from Xlsx, Xlsb, Xlsm, Xltm, Xlam, or Excel97To2003, depending on your compatibility requirements and preferred features. These formats support robust encryption standards and are recognized by virtually every major spreadsheet application, ensuring that the locked file can be opened by colleagues or clients (provided they have the correct password). By offering multiple output options, Spreadsheet Locker allows you to maintain consistency with existing filing systems or upgrade to newer formats without sacrificing security.

How to Protect Your Files

1. Upload Your Document – Drag and drop or browse to select the input file from the supported list. The system will automatically detect the file type and display a preview of the data.
2. Set a Strong Password – Enter a password that meets your organization’s policy (minimum length, mixed characters, etc.). You will be prompted to confirm the password to avoid typographical errors.
3. Choose the Output Format – Select the desired protected format that best fits your downstream workflow. If you are unsure, the default Xlsx format offers broad compatibility and strong encryption.
4. Enable Additional Options (Optional) – You can lock specific worksheets, hide formulas, or restrict editing permissions, providing granular control over how the file can be used once opened.
5. Generate the Protected File – Click “Protect” and let Spreadsheet Locker process the conversion. Within seconds, you will receive a downloadable file that is fully encrypted and ready for secure distribution.

Why Use Spreadsheet Locker?

• Universal Compatibility – Works with both modern and legacy spreadsheet formats, as well as non‑spreadsheet data sources.
• Robust Encryption – Utilizes industry‑standard algorithms to safeguard your data against unauthorized access.
• Ease of Use – Intuitive interface requires no technical expertise; password protection can be applied in just a few clicks.
• Compliance Ready – Helps you meet data protection regulations by ensuring that sensitive information is encrypted at rest.
• Flexible Output – Choose from multiple protected formats to align with existing document management policies.

By leveraging the knowledge shared in this guide, you can confidently protect your spreadsheets and related files, knowing that Spreadsheet Locker has you covered from input through to a securely encrypted output. Dive deeper into the sections below for detailed tutorials, best‑practice recommendations, and troubleshooting tips to make the most of your data protection strategy.