A delimited text file stores rows and fields in a compact form. The reader still needs to know details such as the delimiter, character encoding, and how quoted text or line breaks are handled.
Test an export with representative content: a name containing punctuation, non-ASCII text, and a field that includes a line break. A file that works with a few plain values may reveal problems when the real content arrives.
Keep a short description of the expected columns and formats alongside important exports. Check that the receiving tool interprets dates and identifiers as intended. A simple format is useful when its small conventions are clear to both ends of the exchange.
Picture this situation.
Imagine importing a list whose descriptions contain commas. The importer needs to interpret the quoting convention before those words become useful columns.
A second way to look.
A useful summary should preserve the detail that matters to the decision. Consider which differences become invisible when many observations become one number.
- Include punctuation and varied text in a sample.
- Check delimiter and encoding settings.
- Document the intended column formats.
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Distinguish an amount from a rate.
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Related background to continue exploring this subject.
RFC Editor: the CSV format W3C: a primer for tabular data