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+# Excel File Upload Mapping
+
+## File Information
+- **File**: `1cc01b8Comenzi Productie (19).xlsx`
+- **Sheets**: DataSheet (corrupted), Sheet1 (249 rows × 29 columns)
+- **Purpose**: Production orders for label generation
+
+## Excel Columns (29 total)
+
+### Core Order Fields (✅ Stored in Database)
+1. **Comanda Productie** → `comanda_productie` ✅
+2. **Cod Articol** → `cod_articol` ✅
+3. **Descriere** → `descr_com_prod` ✅
+4. **Cantitate ceruta** → `cantitate` ✅
+5. **Delivery date** → `data_livrare` ✅
+6. **Customer** → `customer_name` ✅
+7. **Comanda client** → `com_achiz_client` ✅
+
+### Additional Fields (📊 Read but not stored in order_for_labels table)
+8. **Status** → `status` 📊
+9. **End of Quilting** → `end_of_quilting` 📊
+10. **End of sewing** → `end_of_sewing` 📊
+11. **T1** → `t1` 📊 (Quality control stage 1)
+12. **Data inregistrare T1** → `data_inregistrare_t1` 📊
+13. **Numele Complet T1** → `numele_complet_t1` 📊
+14. **T2** → `t2` 📊 (Quality control stage 2)
+15. **Data inregistrare T2** → `data_inregistrare_t2` 📊
+16. **Numele Complet T2** → `numele_complet_t2` 📊
+17. **T3** → `t3` 📊 (Quality control stage 3)
+18. **Data inregistrare T3** → `data_inregistrare_t3` 📊
+19. **Numele Complet T3** → `numele_complet_t3` 📊
+20. **Clasificare** → `clasificare` 📊
+21. **Masina Cusut** → `masina_cusut` 📊
+22. **Tip Masina** → `tip_masina` 📊
+23. **Timp normat total** → `timp_normat_total` 📊
+24. **Data Deschiderii** → `data_deschiderii` 📊
+25. **Model Lb2** → `model_lb2` 📊
+26. **Data Planific.** → `data_planific` 📊
+27. **Numar masina** → `numar_masina` 📊
+28. **Design nr** → `design_nr` 📊
+29. **Needle position** → `needle_position` 📊
+
+## Database Schema (order_for_labels)
+
+```sql
+CREATE TABLE order_for_labels (
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    comanda_productie VARCHAR(25) NOT NULL,
+    cod_articol VARCHAR(25) NOT NULL,
+    descr_com_prod VARCHAR(100),
+    cantitate INT,
+    data_livrare DATE,
+    dimensiune VARCHAR(25),
+    com_achiz_client VARCHAR(25),
+    nr_linie_com_client INT,
+    customer_name VARCHAR(50),
+    customer_article_number VARCHAR(25),
+    open_for_order VARCHAR(25),
+    line_number INT,
+    printed_labels INT DEFAULT 0
+);
+```
+
+## Validation Rules
+
+### Required Fields
+- ✅ `comanda_productie` (Production Order #)
+- ✅ `cod_articol` (Article Code)
+- ✅ `descr_com_prod` (Description)
+- ✅ `cantitate` (Quantity)
+
+### Optional Fields
+- `data_livrare` (Delivery Date)
+- `dimensiune` (Dimension)
+- `com_achiz_client` (Customer Order #)
+- `nr_linie_com_client` (Customer Order Line)
+- `customer_name` (Customer Name)
+- `customer_article_number` (Customer Article #)
+- `open_for_order` (Open for Order)
+- `line_number` (Line Number)
+
+## Processing Logic
+
+1. **Sheet Selection**: Tries Sheet1 → sheet 0 → DataSheet
+2. **Column Normalization**: Converts to lowercase, strips whitespace
+3. **Column Mapping**: Maps Excel columns to database fields
+4. **Row Processing**: 
+   - Skips empty rows
+   - Handles NaN values (converts to empty string)
+   - Validates required fields
+   - Returns validation errors and warnings
+5. **Data Storage**: Only valid rows with required fields are stored
+
+## Sample Data (Row 1)
+
+```
+comanda_productie    : CP00267043
+cod_articol          : PF010147
+descr_com_prod       : HUSA STARLINE NEXT X7 90X210
+cantitate            : 1
+data_livrare         : 2024-03-12
+customer_name        : 411_01RECT BED
+com_achiz_client     : 379579-1
+status               : Inchis
+classificare         : HP3D
+masina_cusut         : SPECIALA
+```
+
+## Upload Functionality
+
+**URL**: `/upload_data` (Labels module)
+
+**Supported Formats**:
+- CSV (.csv)
+- Excel (.xlsx, .xls)
+
+**Process**:
+1. User uploads file
+2. System validates file type
+3. Processes file (CSV or Excel)
+4. Shows preview with validation
+5. User confirms upload
+6. Data inserted into database
+
+## Testing
+
+```bash
+# Test Excel reading
+cd /srv/quality_app
+python3 << 'EOF'
+import pandas as pd
+df = pd.read_excel("1cc01b8Comenzi Productie (19).xlsx", sheet_name='Sheet1')
+print(f"✅ Read {len(df)} rows × {len(df.columns)} columns")
+print(f"Required fields present: {all(col in df.columns for col in ['Comanda Productie', 'Cod Articol', 'Descriere', 'Cantitate ceruta'])}")
+EOF
+```
+
+## Implementation Files
+
+- `/srv/quality_app/py_app/app/order_labels.py` - Processing functions
+- `/srv/quality_app/py_app/app/routes.py` - Upload route handler
+- `/srv/quality_app/py_app/app/templates/upload_orders.html` - Upload UI
+
+---
+**Status**: ✅ All 29 columns readable and mapped correctly
+**Date**: 2024-11-26