chore: bump version to 0.1.6 with Excel to CSV conversion feature

- Added complete Excel to CSV conversion functionality
- Enhanced CSV writing architecture with unified base class
- Fixed Chinese character encoding issues with UTF-8 BOM
- Improved code modularity and reduced duplication
- Updated comprehensive test coverage

Author: hddevteam

CHANGELOG.md

@@ -6,6 +6,27 @@ Check [Keep a Changelog](http://keepachangelog.com/) for recommendations on how
 
 ## [Unreleased]
 
+## [0.1.6] - 2025-07-09
+
+### Added
+- **Excel to CSV Conversion**: Complete implementation of Excel files to CSV format conversion
+- Support for multiple worksheets with configurable output modes (separate files or combined)
+- Configurable CSV encoding (UTF-8 or GBK for Chinese Excel compatibility)
+- Configurable CSV delimiter (comma, semicolon, or tab)
+- Optional metadata comments in CSV output
+- Command palette and context menu integration for Excel to CSV conversion
+
+### Improved
+- Unified CSV writing architecture with CsvWriterBase inheritance pattern
+- Code modularity improvements reducing duplication across converters
+- Enhanced Chinese character encoding support with UTF-8 BOM for Excel compatibility
+- Comprehensive English comments throughout codebase for international development
+
+### Fixed
+- Chinese character encoding issues in CSV output files
+- Code architecture improvements with better inheritance patterns
+- Enhanced test coverage for all conversion features
+
 ## [0.1.5] - 2025-07-09
 
 ### Added

README.md

@@ -9,6 +9,7 @@ A powerful VS Code extension for converting various document formats to Markdown
 ### Supported Document Types
 - **Word Documents** (.docx, .doc) → Markdown
 - **Excel Spreadsheets** (.xlsx, .xls, .csv) → Markdown Tables
+- **Excel Spreadsheets** (.xlsx, .xls) → CSV Files
 - **PDF Documents** (.pdf) → Text Files
 - **PowerPoint Presentations** (.pptx, .ppt) → Markdown
 
@@ -62,6 +63,7 @@ npm run compile
 ### Available Commands
 - `Convert Word to Markdown` - Convert Word documents to Markdown
 - `Convert Excel to Markdown` - Convert Excel files to Markdown tables
+- `Convert Excel to CSV` - Convert Excel files to CSV format
 - `Convert PDF to Text` - Convert PDF to text files
 - `Convert PowerPoint to Markdown` - Convert PowerPoint presentations to Markdown
 - `Extract Word Tables to CSV` - Extract tables from Word documents to CSV format
@@ -79,7 +81,12 @@ npm run compile
 - Smart timeout handling (prevents .doc file freezing)
 
 ### Excel Spreadsheet Conversion
-- Convert to Markdown table format
+- **To Markdown**: Convert to Markdown table format
+- **To CSV**: Convert to CSV format with configurable options
+  - Choose separate files (one per worksheet) or combined file
+  - Configurable encoding (UTF-8 or GBK for Chinese Excel compatibility)
+  - Configurable delimiter (comma, semicolon, or tab)
+  - Optional metadata comments
 - Preserve cell data types
 - Handle multiple worksheets
 - Support .xlsx, .xls, .csv formats

README.zh-cn.md

@@ -9,6 +9,7 @@
 ### 支持的文档类型
 - **Word文档** (.docx, .doc) → Markdown
 - **Excel表格** (.xlsx, .xls, .csv) → Markdown表格
+- **Excel表格** (.xlsx, .xls) → CSV文件
 - **PDF文档** (.pdf) → 文本文件
 - **PowerPoint演示文稿** (.pptx, .ppt) → Markdown
 
@@ -58,6 +59,7 @@ npm run compile
 ### 可用命令
 - `将Word转换为Markdown` - 转换Word文档为Markdown
 - `将Excel转换为Markdown` - 转换Excel文件为Markdown表格
+- `将Excel转换为CSV` - 转换Excel文件为CSV格式
 - `将PDF转换为文本` - 转换PDF为文本文件
 - `将PowerPoint转换为Markdown` - 转换PowerPoint演示文稿为Markdown
 - `提取Word表格为CSV` - 从Word文档提取表格为CSV格式
@@ -75,7 +77,12 @@ npm run compile
 - 智能超时处理（避免.doc文件卡死）
 
 ### Excel表格转换
-- 转换为Markdown表格格式
+- **转换为Markdown**: 转换为Markdown表格格式
+- **转换为CSV**: 转换为CSV格式，支持多种配置选项
+  - 选择分离文件（每个工作表一个文件）或合并文件
+  - 可配置编码（UTF-8或GBK，兼容中文Excel）
+  - 可配置分隔符（逗号、分号或制表符）
+  - 可选元数据注释
 - 保留单元格数据类型
 - 处理多工作表
 - 支持 .xlsx, .xls, .csv 格式