# Type- and format-related problems

- [Inconsistent timestamp formats](/beginners-guide-to-clean-data/type-and-format-related-problems/untitled.md)
- [Whitespace-padded strings](/beginners-guide-to-clean-data/type-and-format-related-problems/whitespace-padded-strings.md)
- [Binary data](/beginners-guide-to-clean-data/type-and-format-related-problems/binary-data.md)
- [Semi-structured log files](/beginners-guide-to-clean-data/type-and-format-related-problems/semi-structured-log-files.md)
- [Proprietary data formats](/beginners-guide-to-clean-data/type-and-format-related-problems/proprietary-data-formats.md)
- [Spreadsheets](/beginners-guide-to-clean-data/type-and-format-related-problems/spreadsheets.md)