Security

Excel Field-Level Decryptor

Decrypt specific fields in Excel files using various decryption methods to restore encrypted information

file· File resultOpen tool

Quick start

Call this tool from your code in three languages.

cURL

# 1) Request a presigned URL → returns { uploadUrl, storageKey }
curl -X POST 'https://api.elysiatools.com/api/upload/presign/excel-field-decryptor' \
  -H 'Content-Type: application/json' \
  -d '{"filename":"excelFile.ext","contentType":"application/octet-stream","size":12345}'

# 2) PUT the file bytes directly to the presigned uploadUrl
curl -X PUT '<presigned uploadUrl>' \
  --data-binary @/path/to/file.ext

# 3) Call the tool, passing the returned storageKey for each file field
curl -X POST 'https://api.elysiatools.com/en/api/tools/excel-field-decryptor' \
  -F 'excelFile=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
  -F 'decryptionMethod=base64' \
  -F 'selectedFields=Comma-separated field names (e.g., Email,Phone,SSN). Leave empty to decrypt all fields.' \
  -F 'decryptionKey=Enter decryption key (required for AES decryption)' \
  -F 'caesarShift=3' \
  -F 'worksheetIndex=0' \
  -F 'hasHeader=true' \
  -F 'outputFormat=excel' \
  -F 'decryptedOnly=false'

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Security

Excel Field-Level Decryptor

Decrypt specific fields in Excel files using various decryption methods to restore encrypted information

file· File resultOpen tool

Quick start

Call this tool from your code in three languages.

cURL

# 1) Request a presigned URL → returns { uploadUrl, storageKey }
curl -X POST 'https://api.elysiatools.com/api/upload/presign/excel-field-decryptor' \
  -H 'Content-Type: application/json' \
  -d '{"filename":"excelFile.ext","contentType":"application/octet-stream","size":12345}'

# 2) PUT the file bytes directly to the presigned uploadUrl
curl -X PUT '<presigned uploadUrl>' \
  --data-binary @/path/to/file.ext

# 3) Call the tool, passing the returned storageKey for each file field
curl -X POST 'https://api.elysiatools.com/en/api/tools/excel-field-decryptor' \
  -F 'excelFile=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
  -F 'decryptionMethod=base64' \
  -F 'selectedFields=Comma-separated field names (e.g., Email,Phone,SSN). Leave empty to decrypt all fields.' \
  -F 'decryptionKey=Enter decryption key (required for AES decryption)' \
  -F 'caesarShift=3' \
  -F 'worksheetIndex=0' \
  -F 'hasHeader=true' \
  -F 'outputFormat=excel' \
  -F 'decryptedOnly=false'

Name	Type	Required	Description
excelFile	fileupload required	Yes	—
decryptionMethod	select	Yes	—
selectedFields	text	No	Specify which Excel columns to decrypt. If empty, all fields will be decrypted by default.
decryptionKey	text	No	Only required for AES decryption method. Use to same key that was used for encryption.
caesarShift	number	No	Number of positions to shift back for Caesar cipher decipher (1-25)
worksheetIndex	number	No	Index of worksheet to process (0 for first worksheet, 1 for second, etc.)
hasHeader	checkbox	No	Treat first row as column headers
outputFormat	select	Yes	—
decryptedOnly	checkbox	No	Skip detailed analysis and only output decrypted data

Excel Field-Level Decryptor

Quick start

Excel Field-Level Decryptor

Quick start

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