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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 - 2019 files (XML and BIFF12 binary formats) as well as with old MS Excel 95 - 2003 files (BIFF7 and BIFF8 formats).
  • You may also check Password Search FAQ if "password to open" recovery is required.

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 - 2019 and Office 365 encryption methods are supported.
  • Windows XP - Windows 10.

Program Screenshots:

types of protection:

Files locked with "password to open" are encrypted with password-based keys. Excel 97-2003 default encryption is not very strong (40-bit RC4) and data is extractable with guarantee (please check ExcelDecryptor for details). Excel 2007-2019 formats are AES-encrypted with keys generated from passwords using PBKDF2 derivation function (with many thousands of SHA hash iterations to slow exhaustive search), thus password is required to access encrypted data. Excel Password allows you to setup multiple password search attacks such as advanced mixed attacks to exploit any known password details (parts or patterns) and to cut search time required. It is highly optimized tool as you can see from test results listed below for some common CPUs and GPUs.

Workbook, Sheets and Ranges passwords can be instantly recovered or removed by Excel Password. Passwords are not stored in a file and there are several format-specific methods to generate password verifications values (hash), thus in some cases passwords can be recovered or alternative passwords (with equal hash) can be generated and for some formats the best option is to remove protection altogether.

VBA scripts are sometimes used to extend spreadsheets functionality (from basic calculations to advanced external data access), but VBA code can contain self-protection routines as well. Manual code modification is required to selectively disable some VBA protection blocks (like sheets auto-lock on startup). You can disable VBA functionality in full (File tab -> Options -> Trust Center -> Trust Center Settings -> Macro Settings -> Disable all macros) or check VBA Recovery Toolkit to access locked modules, view source code, etc.

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 - 2019:
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 - 2019:
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 2013-2019. Test results below are shown to be very close to this estimation.

+ NVIDIA GPU:
 
Excel 2007:
Excel 2010:
2013 - 2019:
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 2013-2019.

+ AMD GPU:
 
Excel 2007:
Excel 2010:
2013 - 2019:
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.

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