TST: Test coverage for Excel Formatter.py #24106

Job	Run time
Linux-32-bit	9m 21s
python-dev	0s
Pyodide build	6m 20s
Linux-Musl	6m 18s
macos-14 actions-311.yaml	21m 4s
macos-14 actions-312.yaml	25m 46s
macos-14 actions-310.yaml	22m 9s
windows-latest actions-310.yaml	37m 10s
windows-latest actions-311.yaml	38m 13s
windows-latest actions-312.yaml	37m 33s
macos-13 actions-310.yaml	32m 30s
macos-13 actions-312.yaml	32m 53s
windows-latest actions-313.yaml	43m 36s
macos-13 actions-311.yaml	26m 0s
macos-13 actions-313.yaml	38m 0s
ubuntu-24.04 actions-311.yaml	44m 6s
ubuntu-24.04 actions-313.yaml	45m 50s
macos-14 actions-313.yaml	25m 50s
Pypy	1m 39s
ubuntu-24.04-arm actions-312.yaml	36m 0s
Future infer strings	45m 11s
ubuntu-24.04 actions-312.yaml	44m 8s
Downstream Compat	6m 12s
Locale: it_IT	24m 53s
ubuntu-24.04-arm actions-310.yaml	36m 42s
Minimum Versions	23m 37s
Pyarrow Nightly	21m 46s
ubuntu-24.04-arm actions-311.yaml	34m 40s
ubuntu-24.04 actions-310.yaml	45m 50s
ubuntu-24.04-arm actions-313.yaml	35m 28s
Future infer strings (without pyarrow)	39m 13s
Numpy Dev	16m 56s
Locale: zh_CN	23m 35s
Freethreading	21m 17s
	15h 49m 46s

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