Thegrideon Software
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Excel Password Recovery tool

Excel Password Recovery

  • Excel Password by is feature-rich password recovery tool for MS Excel Spreadsheets and Templates (*.xlsx, *.xlsb, *.xlsm, *.xls, *.xlt, ...).
  • Excel Password works with MS Excel 2007 - 2016 files in XML and Binary (BIFF12) file format and MS Excel 97 - 2003 files with RC4 40bit and 40-128bit CryptoAPI encryption.
  • Write Reservation, Workbook, Sheets or Ranges Protection passwords can be recovered or removed instantly.
  • You may also check other MS Excel tools.

Excel Password Recovery Features:

  • Write Protection / Workbook / Sheets / Ranges passwords are recovered or removed instantly.
  • Several attacks can be configured and queued for "password to open" recovery:more info
    • Dictionary attacks with modifications (wordlists for several languages are included).
    • Brute-force attacks based on charset and length selected.
    • Mixed attacks (combination of parts: dictionaries, brute force and fixed).
    • Virtually endless number of combinations for mixed attacks.
    • Advanced keyboard layouts-aware recovery technique.
  • Highly optimized code (SSE, AVX, AVX2) guarantees maximum performance. recovery speed
  • Supports up to 64 simultaneous processing threads (multi-CPU, multi-GPU).
  • Utilizes NVIDIA and AMD Graphics processing units with a high-performance methods.
    • Special fine-tuned code for NVIDIA Kepler and Maxwell based GPUs. NVIDIA GPUs
    • Special fine-tuned code for AMD R9 series GPUs. AMD GPUs
  • Utilizes Intel HD Graphics GPUs (4000 and 5000 series, Iris Pro).Intel HD GPUs
  • All MS Excel 97-2016 encryption methods are supported.
  • Windows 10 Compatible.

Program Screenshots:

Support and Contacts

Please, feel free to contact us. Just go to the contact page and send us a message, or visit our Support forum.

Additional Information:

How it works?
Write Protection / Workbook / Sheets / Ranges passwords are recoverable or removable instantly!
Encryption methods used in Excel 97 - 2003 are not very strong by today standards and there is a way to remove file protection with guarantee (please check ExcelDecryptor), however there is no way to recover the original password without exhaustive password search and if the password is as important as spreadsheets content than Excel Password allows you to search through millions of passwords per second.
Methods used for "password to open" protection in Excel 2007 - 2016 are based on industry strong encryption algorithms (SHA-1, SHA-512, AES) and instant password recovery or 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 dictionary, sequentially based on a charset and length selected or as combination of dictionaries, sequences and fixed parts. Excel Password allows you to set several attacks in queue, split password in parts and set each part independently with virtually endless number of combinations. Additional modifications are available including unique keyboard layouts-aware recovery technique, char replacement (e.g. S or s with $), 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 very common hardware is available below to back this statement up.

What is the 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. Intel GPU utilization is a unique feature of Thegrideon Software tools.

+ Intel HD Graphics 4400
(12 CUs, i3 4130)
Excel 2007 Excel 2010 Excel 2013/16
+ 820 p/s + 410 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) + 13 700 (685/CU)
+ 756 (75/CU) + 1 725 (86/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) + 2 870 (1 435/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 run any password search for up to 15 minutes. Saved search progress can be used in registered version only. 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 the email with your registration key. The key should be entered into the evaluation version, which can be downloaded from this page.

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