When stripping out the header an assumption is made that the seperator between the header and the data is a single blank line.
There are various Python modules that are required by these scripts. To install them run
pip install -r requirements.txt
Place the "Sample A.xlsx" and or "Sample B.xlsx" files in the same directory as the .py scripts then execute the appropriate script. This can be done by opening the directory (containing the scripts) with a shell (command prompt, powershell, bash, etc) and running py Sample_A.py or py Sample_B.py. The resulting files will be placed in the same directory as the scripts.