Thegrideon Software. One less reason to worry.

Excel Password Recovery

  • Excel Password by is a feature-rich and highly-optimized password recovery tool for MS Excel Spreadsheets and Templates (.xlsx, .xlsb, .xlsm, .xls, .xlt, ...).
  • It works with new MS Excel 2007 - 2016 files (XML and BIFF12 binary formats) as well as with old MS Excel 95 - 2003 files (BIFF7 and BIFF8 formats).
  • You may also check VBA Recovery Toolkit to access and analyze VBA Projects source code.

Excel Password Recovery Features:

  • Workbook, Sheets, Ranges, Share and Write 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, AVX-512) guarantees best performance.info
  • Utilizes NVIDIA and AMD Graphics processing units with a high-performance methods.
  • Utilizes Intel HD Graphics GPUs as well.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 and Office 365 encryption methods are supported.
  • Windows XP - Windows 10.

Program Screenshots:

Excel "Password to Open":

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 for details), however there is no way to recover 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 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 ("brute-force") or as combination of dictionary, brute-force and fixed parts. Excel Password allows you to set several attacks in a queue, split password in parts and set each part independently for precise search range configurability. Additional modifications are available including unique keyboard layouts-aware recovery technique, char replacements (e.g. S or s with $), multi-position modifications, etc.
You may also check Password Search FAQ.
Note: MS Excel 2019 preview (beta) uses encryption methods and password verification procedures identical to the the ones used in Excel 2016.

Password Recovery Speed:

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.

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 (passwords per second).

CPU:
 
Instructions Set:
Excel 2007:
Excel 2010:
2013 - 2016:
Intel® Core™2 Duo
T7500 @ 2.20GHz
Intel® Core™ i3
2100 @ 3.10GHz
Intel® Core™ i3
4130 @ 3.40GHz
Amazon EC2 "c5.large"
Xeon® Platinum core
SSE2 AVX AVX2 AVX512
~470 p/s ~940 p/s ~2 100 p/s ~2 500 p/s
~230 p/s ~475 p/s ~1 050 p/s ~1 200 p/s
~30 p/s ~60 p/s ~135 p/s ~210 p/s

Integrated GPUs
Modern integrated GPUs (like Intel HD and Iris Graphics) can be used for password recovery acceleration. Integrated GPUs are not as powerful as dedicated (discrete) devices and often overlooked but can add up to 30% to CPU performance.

Discrete GPUs
Compute units or stream multiprocessors (CU, SM, SMX, SMM) are the main building blocks of GPU calculation power, thus 32xCU GPU card is almost 2 times faster than 16xCU GPU card of the same family and architecture running on the same frequency.

NVIDIA
For cards with compute capability sm_35 (Kepler 2.0) and above (Maxwell, Pascal, Volta) you can expect approximately 2400 p/s per every SM running at 1000Mhz for Excel 2007, 1200 p/s for Excel 2010 and 160 p/s per SM for Excel 2013-2016. Test results below are shown to be very close to this estimation.

+ NVIDIA GPU:
 
Excel 2007:
Excel 2010:
2013 - 2016:
GTX 470 (sm_20)
14xSM, 625 MHz
GT 640 (sm_35)
2xSMX, 1046 MHz
Tesla K80 (sm_37)
2x13xSMX, 876 MHz
Tesla V100 (sm_70)
80xSM, 1246 Mhz
+ 10 300 p/s + 5 600 p/s + 54 000 p/s + 240 000 p/s
+ 5 200 p/s + 2 850 p/s + 27 000 p/s + 120 000 p/s
+ 710 p/s + 340 p/s + 3 300 p/s + 18 000 p/s

AMD
AMD GPUs are very "password recovery friendly" and consistent with architecture change from VLIW5 to VLIW4 and now to GCN. You can expect approximately 1500 p/s per every CU running at 1000Mhz for Excel 2007, 750 p/s for Excel 2010 and 130 p/s per CU for Excel 2013-2016.

+ AMD GPU:
 
Excel 2007:
Excel 2010:
2013 - 2016:
HD 6770
10xCU, 850 Mhz
R9 270
20xCU, 925 MHz
RX 480
36xCU, 1266 MHz
+ 15 500 p/s + 27 000 p/s + 74 000 p/s
+ 7 800 p/s + 13 800 p/s + 37 000 p/s
+ 760 p/s + 2 400 p/s + 6 400 p/s

It is important to mention that AMD and NVIDIA architectures are quite different and although AMD per CU performance is lower, there are more CUs per card in a similar price range. Moreover GPU performance is somewhat variable with number of factors including GPU/CPU combination and even a driver version. Please contact us if your recovery speed is noticeably different from the data above.

Trial Version Limitations:

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.

Copyright © 2003-2018 .
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.