Your Data Stays on Your Computer

Simple promise: We never see, touch, or store your files. Everything happens right in your browser.

Think of It Like This...

Using XLSX Studio is like doing math on a calculator at your desk. The calculator processes the numbers, but never saves them. When you're done, the numbers disappear. That's exactly how we handle your files.

No cloud storage. No servers. No risk.

What Happens to Your File?

You Upload

On Your Computer

Your file loads into your browser (like opening an app on your phone)

We Process

Still on Your Computer

Your browser does the work (like a calculator doing math)

You Download

Saved to Your Computer

Get your transformed file back

We Forget

Gone Forever

Everything erased from memory instantly

Why This Matters

Your file never travels over the internet to our servers. It's like editing a document on Microsoft Word on your laptop - the file stays on your computer the whole time. We can't access it, hackers can't steal it, and there's no database to breach.

How We're Different

Most tools upload your files to the cloud. We don't.

Other Tools

  • ×Upload your file to their servers
  • ×Store it in their cloud database
  • ×Their employees could access it
  • ×Hackers could steal it if breached
  • ×Data kept for 30-90 days

XLSX Studio

  • File stays in your browser
  • Never uploaded anywhere
  • Nobody can access it
  • Nothing to steal or breach
  • Deleted in 0 seconds

AI-Powered Tools

Most tools process your data entirely in your browser. However, some advanced features use AI and require sending your data to external servers for processing.

Standard Tools

  • Process entirely in your browser
  • Data never leaves your computer
  • No external servers involved
  • Maximum privacy and security

AI-Powered Tools

  • Send data to AI servers for processing
  • Required for advanced AI features
  • Clearly marked with AI branding
  • You choose when to use them

Which Tools Use AI?

AI-powered tools are clearly identified with AI branding and sparkle icons. Examples include:

  • Datapoint Grabber - Extract data from images using AI vision
  • SnapKin - Merge similar tables with AI assistance
  • Pivot Storyteller - Generate insights from your data
  • Formula Explainer - Understand complex Excel formulas

When you use these tools, only the necessary data is sent to AI providers (like OpenAI) for processing. The data is not stored permanently and is only used to provide you with results. You have full control over when and if you use these features.

Common Questions

See It For Yourself

Don't just trust us - here's how to prove your data never leaves your computer

Watch Your Network

  1. 1.Right-click anywhere on this page, select "Inspect"
  2. 2.Click the "Network" tab at the top
  3. 3.Upload a file and process it
  4. 4.You'll see zero file uploads - proof your data stays local!

Try Offline Mode

  1. 1.Upload a file to XLSX Studio
  2. 2.Turn off your Wi-Fi or unplug your internet
  3. 3.The tool still works! Process your file normally
  4. 4.This proves everything happens on your computer, not our servers

Still Have Questions?

We're happy to explain our security in more detail

Email Our Team