# o8_pics_size Run the app to open a file picker limited to Excel files (`.xls`, `.xlsx`). After selecting a file, it reads the workbook sheet names and opens a terminal picker where you choose a sheet with arrow keys and Enter. Then it reads the header row and asks you to map three columns using the same TUI picker: - `Cikkszám` - `Url` - `img_sequence` After mapping, it downloads each image from the selected `Url` column, reads image metadata, and writes a new Excel file next to the source workbook as `result_[uuid].xlsx`. For testing, it currently processes only the first 100 non-empty URL rows. Image processing runs in parallel workers with timeouts and response-size guards to avoid long hangs. Output columns: - `Cikkszám` - `Sqeuence` - `Url` - `Width` - `Height` - `Size` (KB)