CSV row filter

One condition, clearly applied.

Filter conditions can have up to 10,000 characters. Text conditions compare the full original cell, including spaces and leading zeros. Ignore case uses English lowercase comparison. Blank checks treat empty and whitespace-only cells as blank. An empty text condition is allowed; for example, every value contains an empty string.

Numeric conditions accept plain signed decimals with up to 30 digits total and 12 digits after the decimal point. Currency signs, commas and exponent notation are unsupported. Blank or unsupported numeric values are excluded and counted explicitly. Matching rows retain their original cell text and order. No matches produces a header-only CSV.

Empty physical lines are ignored when reading a CSV. Explicit empty CSV records, such as a row of delimiters or a quoted empty field, are retained. Header names are trimmed and must be unique. Missing trailing cells become empty text. Record counts and issue numbers refer to the records retained after this reading step.