Thegrideon Software. One less reason to worry.
Excel Password Recovery tool

Excel Password Recovery

  • Excel Password by is a feature-rich password recovery tool for MS Excel Spreadsheets and Templates (.xlsx, .xlsb, .xlsm, .xls, .xlt, ...).
  • Excel Password works with all MS Excel 2007 - 2016 files in XML and Binary (BIFF12) file formats as well as with old MS Excel 95 - 2003 files in BIFF7 / BIFF8 format.
  • You may also check VBA Recovery Toolkit to handle locked VBA Projects.

Excel Password Recovery Features:

  • Share, Write, Workbook, Sheets and Ranges passwords are recovered or removed instantly:
    • charts, sheets, ranges, ... are listed with passwords and states (visible, hidden, veryHidden);
    • names, states and passwords list can be saved as '.csv' file;
  • Several attacks can be configured and queued for "password to open" recovery:info
  • "Save passwords to a file" option to verify search settings or to generate a new wordlist, etc.
  • Highly optimized code (SSE, AVX, AVX2) guarantees best performance.info
  • Utilizes NVIDIA and AMD Graphics processing units with a high-performance methods.
  • Renewed code for Intel HD Graphics GPUs.Intel GPU support
  • Supports up to 64 simultaneous processing threads (multi-CPU, multi-GPU).
  • Audio, script or web address based post-search notification.
  • All MS Excel 95-2016 encryption methods are supported.
  • Windows XP - Windows 10.

Program Screenshots:

Additional Details:

Write Reservation, Share, Workbook, Sheets and Ranges passwords can be recovered or removed in seconds regardless of version and format.
Encryption methods used in Excel 97 - 2003 "password to open" are not very strong by today standards and there is a way to remove file protection with guarantee (please check ExcelDecryptor for details), however there is no way to recover the original password without exhaustive password search and if the password is as important as a spreadsheet content than Excel Password allows you to search through millions of passwords per second.
Methods used in Excel 2007 - 2016 protection are based on industry strong hashing and encryption algorithms (SHA-1, SHA-512, AES) and instant password to open recovery or file decryption cannot be guaranteed in contrast to prior MS Excel versions. Moreover recovery speed is limited due to iterative methods used in password verification.
In order to recover these types of passwords, candidates have to be created based on a dictionary, sequentially with a charset and length selected (called brute-force) or as combination of dictionary, brute-force and fixed parts. Excel Password allows you to set several attacks in queue, split password in parts and set each part independently with precise search range configurability. Additional modifications are available including unique keyboard layouts-aware recovery technique, char replacement (e.g. S or s with $), multi-position modifications, etc.
We did our best to enhance this tool performance as well as the recovery speed with some advanced methods and it found to be the fastest tool for MS Excel "password to open" recovery.
Password recovery speed for a very common hardware is available below to back this statement up.

Password Recovery Speed:

Excel 97 - 2003:

CPU:
 
40bit RC4:
CryptoAPI:
Intel® Core™2 Duo
T7500 @ 2.20GHz
Intel® Atom™
Z3740 @ 1.33GHz
Intel® Core™ i3
2100 @ 3.10GHz
Intel® Core™ i3
4130 @ 3.40GHz
1 550 000 p/s 1 900 000 p/s 3 700 000 p/s 4 600 000 p/s
1 350 000 p/s 1 600 000 p/s 3 200 000 p/s 4 100 000 p/s

Excel 2007 - 2016:
The final password recovery speed is equal to CPUspeed + GPU(1)speed + ... + GPU(N)speed.
For example (Excel 2007): Intel i3 + integrated HD 4400 GPU + AMD R9 270 = 2 100 + 820 + 27 300 = ~30 000 p/s.

CPU:
 
Instructions Set:
Excel 2007:
Excel 2010:
Excel 2013/16:
Intel® Core™2 Duo
T7500 @ 2.20GHz
Intel® Core™ i3
2100 @ 3.10GHz
Intel® Core™ i7
2600 @ 3.40GHz
Intel® Core™ i3
4130 @ 3.40GHz
SSE2 AVX AVX AVX2
~470 p/s ~940 p/s ~2 080 p/s ~2 110 p/s
~230 p/s ~475 p/s ~1 050 p/s ~1 060 p/s
~30 p/s ~60 p/s ~130 p/s ~135 p/s

Intel HD and Iris Graphics: Intel integrated GPUs starting from HD Graphics 4000 can be used for password recovery acceleration. Integrated GPUs are not so powerful in comparison to dedicated (discrete) devices and often overlooked but can add up to 30% to CPU performance.

+ Intel HD Graphics 4400
(12 CUs, i3 4130)
Excel 2007 Excel 2010 Excel 2013/16
+ 800 p/s + 400 p/s + 50 p/s

Discrete GPUs
There are too many cards to list, but the main concept is simple: compute units (CUs) are the main building blocks of GPU calculation power. So card with 32 CUs is approximately twice faster than 16 CUs GPU of the same family and architecture.

AMD GPUs
AMD GPUs are very "password recovery friendly" and consistent despite architecture change from VLIW5 to VLIW4 and now to GCN.

+ GPU:
 
Excel 2007:
Excel 2010
Excel 2013/16
AMD Radeon™
HD 6770 (10 CUs)
AMD Radeon™
R9 270 (20 CUs)
+ 15 500 (1 550/CU) + 27 300 (1 365/CU)
+ 7 800 (780/CU) + 13 500 (675/CU)
+ 750 (75/CU) + 2 300 (115/CU)

NVIDIA GPUs
Recovery speed with Kepler/Maxwell architecture cards (sm_35/sm_50 compute capabilities) is much better in per CU performance than with Fermi.

+ GPU:
 
Excel 2007:
Excel 2010
Excel 2013/16
NVIDIA GeForce
GTX 470 (14 CUs, sm_20)
NVIDIA GRID
K520 (8 CUs, sm_30)
NVIDIA GT 640
(just 2 CUs, Kepler, sm_35)
+ 10 500 (750/CU) + 7 900 (987/CU) + 5 700 (2 870/CU)
+ 5 300 (378/CU) + 3 960 (495/CU) + 2 700 (1 350/CU)
+ 710 (40/CU) + 600 (75/CU) + 340 (170/CU)

GPU performance is somewhat variable with number of factors including GPU/CPU combination and even driver version. Please contact us if your recovery speed is noticeable different from the data above.

Trial and Registration:

Trial version allows you to setup and test run any password search for up to 15 minutes per set. Recovered passwords are hidden behind the asterisks.

With the "Home User" License, you can use the program for non-commercial purposes in non-business, non-commercial environment (personal files). To use the program in a corporate, government or business environment (clients or corporate files), you should purchase the "Business User" License.

Home User license is only $29.95 and Business User license is $44.95.

After payment processing is completed, you will immediately receive your registration key by email. The key should be entered into the evaluation version available from this page.

Copyright © 2003-2017 .
Thegrideon Software and Thegrideon Service are trademarks of Thegrideon Corp. Terms of use | Privacy.
All trademarks, logos, product names & pictures mentioned or displayed herein are the property of their respective holders.