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74 lines
2.7 KiB
Markdown
74 lines
2.7 KiB
Markdown
# Environment Setup for convert-excel-to-md
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Follow these steps exactly, in order, before running `scripts/convert_excel_to_md.py`
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for the first time in a given environment. Don't skip steps or improvise
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alternatives — they're written to be deterministic and safe to re-run.
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## 1. Check Python is available (3.10+)
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```powershell
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python --version
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```
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- If this fails (command not found), install Python 3.10 or newer:
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- Windows: `winget install --id Python.Python.3.12 -e`
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- macOS: `brew install python@3.12`
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- Linux (Debian/Ubuntu): `sudo apt-get update && sudo apt-get install -y python3 python3-pip python-is-python3`
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- If the reported version is older than 3.10, install a newer Python using
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the same command above (MarkItDown requires 3.10+).
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## 2. Check pip is available
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```powershell
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python -m pip --version
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```
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- If this fails, bootstrap pip:
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```powershell
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python -m ensurepip --upgrade
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```
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## 3. Install MarkItDown with Excel (.xlsx) support
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Use the `scripts/requirements.txt` file bundled with this skill to install a pinned,
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known-good version of the dependency:
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```powershell
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python -m pip install -r scripts/requirements.txt
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```
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This pulls in `markitdown[xlsx]` (MarkItDown's XLSX table conversion
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dependencies, which include `pandas` and `openpyxl`). No extra package is needed for image extraction — this
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skill's script reads embedded images directly from the `.xlsx` zip
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structure using Python's built-in `zipfile` and `xml` modules.
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## 4. Verify the install
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```powershell
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python -c "from markitdown import MarkItDown; print('markitdown OK')"
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```
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Expect to see `markitdown OK` printed with no errors. If you see
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`ModuleNotFoundError: No module named 'markitdown'`, repeat step 3 — pip may
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be installing into a different Python environment than the one being
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invoked (check `python -m pip --version` shows the same path as `python
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--version`'s interpreter).
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## Notes
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- This setup only needs to be done once per environment/virtual environment,
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not once per conversion.
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- `convert_excel_to_md.py` itself also checks for `markitdown` at startup
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and prints a pointer back to this file if it's missing, so re-running
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setup is safe and idempotent.
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- Only `.xlsx` is supported by this skill. Legacy binary `.xls` files are
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out of scope (a completely different, harder-to-parse file format) — ask
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the user to re-save the file as `.xlsx` (Excel: File > Save As > Excel
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Workbook (.xlsx)) if one is encountered.
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- Chart objects (as opposed to embedded pictures) are not extracted as
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images — only raster pictures actually embedded in the workbook's
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`xl/media` folder are. Native Excel charts would need to be rendered by
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Excel/LibreOffice to become images, which this lightweight skill does not
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attempt.
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