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PROTECT

Protect Microsoft Excel and OpenOffice Calc formats

Protect XLSX, XLS and ODS files with our protection tool online for free.

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OVERVIEW

Protect Excel files with password including XLS, XLSX, XLSB, XLSM, XLT, XLTX, CSV, TSV, ODS and many more.

Our Excel files password protection app allows you to protect several files with password online for free. Protect JSON, SXC, FODS, HTML or any other supported file formats with password. No third-party software installation is required. Web-based Excel spreadsheets password protection application is fast, robust, easy-to-use and absolutely free.

Protect multi-format files

Conveniently protect your multi-format documents including DOC, PDF and DOCX and many more.

Quick protection operation

Lightning fast protect operation for your selected documents.

Lock and Secure Documents

Using our Protect app you can lock and secure your PDF, DOCX, XLSX, PPTX and ONE files online and free of cost.

Encrypt and Password Protect

With our online free app you can password protect, encrypt and add password to your PDF or other file formats. Once locked, your file becomes safe from unauthorized editing or viewing.

Best File Protection online

Our file locking app does not require any program or software download and can be used online for free.

Free Online File Protection

You can use our PDF, DOCX, XLSX, PPTX and ONE files protection app completely free and online.

How it Works
HOW TO

How to protect documents

  • Upload files to protect them online.
  • Specify password text parameter.
  • Press the 'PROTECT' button to protect your files.
  • Download the password-protected file instantly.
  • Send a download link to an email.

Learn More

How to protect documents online
FAQS

How to Protect Microsoft Excel, Open Document Spreadsheet (ODS) and other files?

Just use our online protection tool. It is fast, easy to use and entirely free. It is designed to quickly protect documents online.

We support a variety of document, web and e-book file formats, including PDF, DOC, DOCX, RTF, ODT and many more.

You can protect up to 10 files simultaneously.

Each file size should not exceed 100 MB.

At the end of the protection process, you will get a download link. You can download the result immediately or send the link to your email.

All user files are stored on Aspose servers for 24 hours. After that time, they are automatically deleted.

Aspose gives the highest importance and attention to security issues. Please be assured that your files are kept in secure storage servers and protected from any unauthorized access.

Protecting multiple files may be time-consuming sometimes, as it involves data re-encoding and re-compressing.
MOST POPULAR

The most popular file formats to protect

We support a variety of document, web and e-book file formats, including PDF, DOC, DOCX, RTF, ODT and many more.

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The app runs on a device with a larger screen (minimum width of 320 pixels) aspect ratio.