SPARKPOND / GUIDES
Practical Data File Guides
Ten focused resources with symptoms, causes, examples and procedures.
Why a CSV Opens in One Column and How to Fix It
A CSV usually opens in one column because the file delimiter differs from the delimiter expected by the spreadsheet application.
Read guide →How to Fix UTF-8 and Windows-1252 CSV Encoding
Garbled text appears when bytes are decoded with a different character encoding from the one used to create the file.
Read guide →CSV Comma vs Semicolon: Which Delimiter Should You Use?
Both formats are valid delimited text; compatibility with the destination matters more than the extension.
Read guide →How to Preserve Leading Zeros in CSV Files
Leading zeros disappear when identifiers are interpreted as numbers rather than text.
Read guide →How to Remove Duplicate Rows from a CSV
Duplicates must be defined by all columns or by stable business keys before rows are removed.
Read guide →How to Convert Excel XLSX to CSV Without Excel
A browser can read XLSX values locally and serialize each selected sheet as a separate CSV.
Read guide →How to Merge CSV Files with Different Columns
Files can be merged when their headers are mapped to a common output schema rather than matched by position.
Read guide →How to Compare Two CSV Files by a Key
A stable key lets rows move without looking changed and connects old and new versions for field comparison.
Read guide →CSV Formula Injection: Risks and Safe Exports
A spreadsheet may interpret cells beginning with =, +, -, @, tab or carriage return as formulas when a CSV opens.
Read guide →How to Flatten Nested JSON into CSV
Nested object paths can become columns, while arrays need a selected tabular policy.
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