 numbering, add a sensible amount of zeros in front based on how many files of that category you expect to have in the future. If you expect to have more than 10 but not more than 99 files, you can add a single leading zero (e.g., “data_analysis_01.R” instead of “data_analysis_1.R”), whereas if you expect to have between 100 and 999 you can add two (e.g., “Photo_001.jpeg” instead of “Photo_1.jpeg” or “Photo_01.jpeg”).</p>
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