excel_decryptor 1.0.0 
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A lightweight, pure-Dart library to detect and decrypt password-protected Microsoft Office Excel (.xlsx) and OOXML files.
Changelog #
All notable changes to this project will be documented in this file.
The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.
1.0.0 - 2026-09-11 #
Added #
- Initial release of
excel_decryptor. - Pure-Dart detection of password-protected Microsoft Office Excel (
.xlsx) and OOXML files viaExcelDecryptor.isProtected. - Pure-Dart decryption supporting ECMA-376 Agile Encryption (AES-128/256-CBC with SHA-1, SHA-256, SHA-384, SHA-512).
- Pure-Dart decryption supporting ECMA-376 Standard Encryption (AES-128-ECB with SHA-1).
- Dynamic sector size handling in
CfbParserfor both CFB v3 (512-byte) and CFB v4 (4096-byte) containers. - Simple synchronous API (
ExcelDecryptor.decrypt) and detailed result API (ExcelDecryptor.decryptWithResult). - Comprehensive unit test suite with real banking and Office 365 spreadsheet fixtures.
- Standalone CLI example script in
example/example.dart.
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Metadata
A lightweight, pure-Dart library to detect and decrypt password-protected Microsoft Office Excel (.xlsx) and OOXML files.
Topics
#excel #xlsx #decryptor #ooxml #crypto
License
MIT (license)