graph TD A[Start: Receive CSV & Instructions] --> B[Input Processing] B --> C[Validate CSV Format] B --> D[Parse Branding Instructions] C --> E[Data Structuring] D --> E E --> F[Convert to JSON Structure] F --> G[Add Column Headers] G --> H[Excel Generation] H --> I[Create XLSX Format] H --> J[Insert Crescent Technical Brand] I --> K[Combine Components] J --> K K --> L[Generate Base64 Output] L --> M[Final XLSX File] subgraph Input & Preparation A B C D end subgraph Structuring & Data Handling E F G end subgraph XLSX Synthesis H I J K end subgraph Delivery L M end