Encryption — Aspose.Cells FOSS for Python API Reference

from aspose.cells_foss import (
    CipherAlgorithm, HashAlgorithm,
    AgileEncryptionParameters, StandardEncryptionParameters,
    encrypt_xlsx, decrypt_xlsx, get_default_encryption_params,
)

AgileEncryptionParameters(
    cipher_algorithm=CipherAlgorithm.AES_256,
    hash_algorithm=HashAlgorithm.SHA512,
    spin_count=100000
)

StandardEncryptionParameters(
    cipher_algorithm=CipherAlgorithm.AES_128,
    hash_algorithm=HashAlgorithm.SHA1,
    spin_count=50000
)

encrypt_xlsx(
    input_path: str,
    output_path: str,
    password: str,
    encryption_params=None
) -> None

decrypt_xlsx(
    input_path: str,
    output_path: str,
    password: str
) -> bool

get_default_encryption_params() -> AgileEncryptionParameters

from aspose.cells_foss import Workbook, encrypt_xlsx, AgileEncryptionParameters, CipherAlgorithm, HashAlgorithm

# 1. Build and save an unencrypted workbook
wb = Workbook()
ws = wb.worksheets[0]
ws.cells["A1"].put_value("Confidential data")
wb.save("report.xlsx")

# 2. Encrypt with default AES-256/SHA-512 settings
encrypt_xlsx("report.xlsx", "report_secure.xlsx", password="MyP@ssw0rd!")

# 3. Alternatively, use a lower spin count for faster open/save cycles during development
params = AgileEncryptionParameters(
    cipher_algorithm=CipherAlgorithm.AES_256,
    hash_algorithm=HashAlgorithm.SHA256,
    spin_count=10000,
)
encrypt_xlsx("report.xlsx", "report_dev.xlsx", password="dev_only", encryption_params=params)

from aspose.cells_foss import decrypt_xlsx, Workbook

success = decrypt_xlsx("report_secure.xlsx", "report_decrypted.xlsx", password="MyP@ssw0rd!")

if success:
    wb = Workbook("report_decrypted.xlsx")
    print(wb.worksheets[0].cells["A1"].value)
else:
    print("Incorrect password or file is not encrypted.")

from aspose.cells_foss import Workbook

wb = Workbook("report_secure.xlsx", password="MyP@ssw0rd!")
print(wb.worksheets[0].cells["A1"].value)
wb.save("report_updated_secure.xlsx", password="MyP@ssw0rd!")