How Our Service Works - Fast & Private
Our system is a simple, browser-based, privacy-first process that uses AI to unlock your files quickly.
Last updated: November 11, 2025
The Simple Truth About Password Recovery
Ever locked yourself out of an Excel file and wondered how password recovery actually works?
Most people imagine complex hacking scenes from movies, but the reality is far more straightforward, especially when you own the file.
When I first needed to recover an Excel password years ago, I was frustrated by two extremes: sketchy software that demanded I download suspicious programs, or expensive services charging hundreds of dollars per file.
That's why we built Niraiya differently. Our approach prioritizes three things: your privacy, reasonable pricing, and actually getting results. No Hollywood dramatics, just practical technology that solves a real problem.
Why We Named It Niraiya
The cheetah is the fastest land animal in the wild, reaching 70 mph in a matter of seconds.
But the cheetah is more than just its speed.
This amazing animal's blend of speed, accuracy, focus, and moral hunting conduct is what really sets it apart.
We wanted a name that reflected these qualities when we created our Excel password recovery service.
The cheetah's hunting philosophy serves as the inspiration for Niraiya.
The Niraiya Philosophy
Fast: Multi-AI cloud infrastructure recovers passwords in 5-15 minutes, not hours or days.
Focused: Single-purpose tool that excels at Excel password recovery across all versions (97 to Microsoft 365).
Trustworthy: Zero-knowledge architecture ensures your data privacy from upload to deletion.
Ethical: Designed for legitimate recovery scenarios with transparent pricing and honest success rate disclosure.
The Multi-AI Advantage: ChatGPT, Gemini, and DeepSeek Working Together
Niraiya combines several artificial intelligence systems to maximize password recovery success, much like cheetahs have developed specialized adaptations for hunting.
Our platform utilizes the distinct advantages of each AI by coordinating the OpenAI ChatGPT, Google Gemini, and DeepSeek APIs.
Neural Pattern Recognition
ChatGPT is very good at identifying human password patterns, or how people mix special characters, dates, and meaningful words.
Based on typical human behavior, it predicts likely password candidates by analyzing linguistic patterns and semantic relationships.
Predictive Computation
Gemini optimizes the ranking of password candidates through sophisticated computational modeling.
By removing low-probability combinations early in the recovery process, it significantly reduces the search space when processing encrypted hashes using probabilistic analysis.
Adaptive Optimization
DeepSeek specializes in real-time learning from recovery attempts.
DeepSeek continuously improves its method to find the right password more quickly with each iteration as it tests password candidates based on user feedback.
Synergy in Action: Even though each AI service follows its own usage guidelines and terms of service, their combined efforts produce a recovery system that is far more potent than any one algorithm.
Niraiya can crack Excel passwords in minutes instead of days thanks to this multi-AI fusion, all the while upholding ethical standards and speed.
The Four-Step Process
You can see why Niraiya is safe and efficient by learning how it operates step-by-step. Consider this: we're not breaking into your safe; rather, we're using an analysis of the lock mechanism to determine the combination.
How It Works for Different Scenarios
There is no one-size-fits-all method for finding passwords. Here's how Niraiya responds to typical scenarios where users are unable to access Excel files.
Example 1: Last year, Sarah made a budget spreadsheet and used "her usual password" to secure it, but she can't recall which variation she used. Was it the name of her dog and the year of her birth? Or an exclamation point next to her anniversary date?
Niraiya's Method: These typical patterns are our AI's area of expertise. It tests human-typical variations of meaningful words, dates, and characters. The majority of personal passwords fit into predictable categories, which our machine learning models are particularly good at identifying.
In seven minutes, Sarah's file was unlocked.
Example 2: File passwords were taken with her when Mike's former bookkeeper departed the company. For a loan application, he needs access to financial spreadsheets, but the passwords were never recorded.
How Niraiya assists: Business passwords frequently adhere to the creator's personal patterns or company naming conventions. Our AI examines typical business password structures, such as date-based systems, project codes, and company names.
Recovery was simple and finished within business hours because Mike was the legal owner of the files.
Example 3: Jennifer found outdated Excel 97 (.xls) files containing important information from a business acquisition. The original passwords were lost years ago, and the files were encrypted using outdated techniques.
How It Produces Outcomes: Excel versions 97 through Microsoft 365 are all supported. In fact, older formats employ weaker encryption, resulting in quicker recovery times.
Jennifer's team was able to extract important historical data from her legacy files in less than ten minutes each.
Example 4: Hours before her thesis defense, a graduate student discovered that she was unable to access months' worth of research data that were locked in a secure Excel workbook.
How We Simplify Things: Cloud computing excels at speed. Our distributed AI infrastructure worked in parallel to retrieve the password in just eight minutes, compared to hours or days for traditional desktop tools.
With all of her data intact, the student presented her defense on schedule.
Why Your Data Stays Private
For us, privacy is an architectural concept rather than merely a catchphrase. Maintaining control over your data was a top priority in every choice made while developing Niraiya.
This is how your data is handled at each stage.
What Never Leaves Your Computer:
- Your complete Excel file content
- Cell data, formulas, and calculations
- Charts, images, and embedded objects
- Macros and VBA code
- Personal identifiable information in your spreadsheet
What We Process (Encrypted):
- Cryptographic hash of password encryption
- Excel version and encryption type
- File size (for processing optimization)
- Basic technical metadata (no personal info)
What We Delete Immediately:
- Processing logs and AI analysis results
- Temporary server data and cache
- Any record of your file ever existing
Technical Privacy Guarantee
Attackers wouldn't find anything useful even if our servers were compromised (which they aren't, but let's imagine). It is mathematically impossible to decipher your actual data from the cryptographic hashes we process.
We literally cannot access the contents of your spreadsheet, even if we wanted to—this is zero-knowledge architecture in action.
What Affects Recovery Success
We believe in transparency. Not every password can be cracked, and understanding why helps set realistic expectations.
High Success Probability
- Passwords using common words or names
- Date-based passwords (birthdays, anniversaries)
- Simple variations (capitals, numbers at end)
- Company or project name combinations
- Passwords under 12 characters
- Older Excel format encryption (97-2003)
Lower Success Probability
- Truly random character strings (20+ chars)
- Password manager generated codes
- Complex special character combinations
- Multiple encryption layers
- Passwords with no human pattern
- Extremely long passphrases (25+ characters)
Sincere Evaluation: Because humans follow patterns, even when we think we're being random, our AI performs exceptionally well when it comes to passwords created by humans. We'll be honest with you: recovery is unlikely if you used a true password generator with maximum complexity.
Instead of wasting your time and money, we would prefer to be truthful.
How It Works: Common Questions
With our multi-AI cloud infrastructure, the majority of Excel password removals are finished in five to fifteen minutes. Password complexity affects recovery time; simple passwords can be cracked more quickly than complex ones.
Our system lets you know exactly what's going on by providing real-time progress updates.
You automatically receive a complete refund if we are unable to crack the password within a day.
We make use of WebAssembly (WASM), a technology that enables sophisticated programs to run almost natively in your web browser. Imagine having a tiny Excel password analyzer integrated into a tab of your browser.
Without sending your actual file anywhere, WASM code examines the file structure, reads the encryption metadata, and extracts the password hash when you drop your file into Niraiya.
For browser-based processing, this is the same technology used by popular programs like Google Earth and AutoCAD.
It is required by security best practices and privacy compliance. We must minimize data retention and remove information once its purpose has been served in accordance with GDPR and related regulations. But it's just the right thing to do, regardless of the legal requirements.
There is no need to retain any information after we have recovered your password, including the hash and processing logs. Even if our systems were compromised, there wouldn't be anything valuable to steal thanks to automatic deletion within 24 hours.
It takes zero-knowledge architecture very seriously.
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