Fixing dedupe

README.md

@@ -1,3 +1,63 @@
 # IntunePolicyParser
 
-Parsing policies from Intune to Excel
+
+A utility to parse **Markdown/HTML documentation exports** from the [IntuneManagement](https://github.com/...) tool into flat CSV files that can be further analyzed in Excel or Power BI.
+
+## Source files
+
+This parser expects as input a **Documentation export** from the IntuneManagement tool. Use the `Export Documentation (Markdown)` feature, which produces a `.md` file containing:
+
+- `<h3>` sections for each policy,
+- two `<table class="table-settings">` blocks under each heading (Basics + Settings).
+
+## Usage
+
+```bash
+python intune.py [input_file.md] [-o OUTPUT.csv] [--dedupe] [--dedupe-scope {exact,policy,global}] [--newline {lf,crlf}]
+```
+
+### Arguments
+
+- `input_file.md`  
+  Path to the Intune documentation export (Markdown/HTML).  
+  Defaults to `cqre.md`.
+
+- `-o, --output OUTPUT.csv`  
+  Output CSV file. If not provided, the name is derived from the input (e.g. `input.md -> input.csv`).
+
+- `--dedupe`  
+  Enable removal of duplicate rows.
+
+- `--dedupe-scope {exact,policy,global}`  
+  How duplicates are identified:  
+  - `exact` → full row must match (default).  
+  - `policy` → unique per (PolicyName + SettingKey + SettingValue).  
+  - `global` → unique per (SettingKey + SettingValue + Policy type + Platform).
+
+- `--newline {lf,crlf}`  
+  Choose line endings for the output CSV:  
+  - `lf` (Unix/macOS/Linux, default)  
+  - `crlf` (Windows)
+
+## Output format
+
+The generated CSV contains one row per policy setting with these columns:
+
+- `PolicyName`  
+- `Description`  
+- `SettingKey`  
+- `SettingValue`  
+- `Policy type`  
+- `Platform supported`  
+- `Created`  
+- `Last modified`  
+- `Scope tags`
+
+## Example
+
+```bash
+# Parse and dedupe by policy, exporting with LF line endings
+python intune.py CQRE.NET-2025-09-22.md -o CQRE.NET-2025-09-22.csv --dedupe --dedupe-scope policy --newline lf
+```
+
+This creates `CQRE.NET-2025-09-22.csv` ready for analysis in Excel.