Correct CSV proxy exports without broken columns
CSV looks like a simple comma-separated list, but values containing commas, quotes, or line breaks require escaping. One malformed field shifts every following column and turns a credential import into unusable data. RFC 4180 documents a broadly interoperable form.
Key points in one minute
- One proxy occupies one record with a consistent field count.
- Fields containing comma, quote, or line break require quotes.
- A quote inside a field is doubled.
- Headers and encoding should remain stable across exports.
Records and header row
The first record may contain column names and every following record represents one proxy. Field count remains consistent. Machine-oriented names such as protocol, host, port, username, and password are easier to automate than localized headers.
Quoting rules
A field containing a comma, line break, or double quote is enclosed in double quotes. Each quote inside the field is written twice. Manual string concatenation often fails as soon as a password or URL contains an unexpected character.
Safe column selection
Export only fields explicitly selected by the user. IP-change links and service identifiers belong in dedicated columns. Values a spreadsheet may treat as formulas require product-level handling and validation in each supported application; valid CSV syntax alone does not prevent formula injection.
Compatibility validation
Open a sample in the target application and parse it again with an automated CSV reader. Compare record count and every field. Use an agreed UTF-8 encoding and verify non-ASCII text in supported office applications.
Practical checklist
- 1Keep a stable column order.
- 2Escape commas, quotes, and line breaks.
- 3Include secret fields only after explicit selection.
- 4Verify UTF-8 in the target application.
- 5Run an automated round-trip import test.
Sources and documentation
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