Add model card

README.md

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+---
+license: mit
+tags:
+- sklearn
+- tabular-classification
+- excel
+- spreadsheet
+---
+
+# sheet-cell-classifier
+
+RandomForest cell role classifier for Excel spreadsheets, used by
+[sheet-call-tree](https://github.com/roksechs/sheet-call-tree).
+
+## Model
+
+Predicts whether a spreadsheet cell is a **header** (0) or **data** (1).
+Trained on CTC (CIUS + SAUS) and ENTRANT datasets.
+
+**Features (23):** gap-proximity (dist_above, dist_left), row/col numeric fractions,
+format fields (bold, italic, colors, borders, alignment, data type), value type flags.
+
+## Usage
+
+```python
+from huggingface_hub import hf_hub_download
+import joblib
+
+model_path = hf_hub_download(repo_id="RokRok/sheet-cell-classifier", filename="cell_classifier.joblib")
+clf = joblib.load(model_path)
+```
+
+`sheet-call-tree >= 0.1.2` downloads and uses this model automatically.