Improve static typing for `test_excel`. #389

	on:
	pull_request:
	branches: [main]
	push:
	branches: [main]

	jobs:
	unit-tests:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [windows-latest]
	python-version: ['3.8', '3.9', '3.10', '3.11', '3.12', '3.13']
	architecture: ['x86', 'x64']
	npsupport: ['with npsupport', 'without npsupport']
	steps:
	- uses: actions/checkout@v4
	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}
	architecture: ${{ matrix.architecture }}
	- name: Set up MSVC
	uses: ilammy/msvc-dev-cmd@v1
	- name: Build and register the OutProc COM server
	run: \|
	cd source/CppTestSrv
	nmake /f Makefile
	./server.exe /RegServer
	- name: unittest comtypes
	run: \|
	if ("${{ matrix.npsupport }}" -eq "with npsupport") {
	pip install 'numpy<2'
	}
	python -m unittest discover -v -s ./comtypes/test -t comtypes\test
	- name: Unregister the OutProc COM server
	run: \|
	cd source/CppTestSrv
	./server.exe /UnregServer

	install-tests:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [windows-latest, windows-2019]
	python-version: ['3.8', '3.9', '3.10', '3.11', '3.12', '3.13']
	architecture: ['x86', 'x64']
	steps:
	- uses: actions/checkout@v4
	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}
	architecture: ${{ matrix.architecture }}
	- name: install comtypes
	run: \|
	pip install --upgrade setuptools
	python setup.py install
	pip uninstall comtypes -y
	python test_pip_install.py

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