Write what the file is claimed to carry
Separate the object from the proof. A sender's sentence is not a completed check.
Read the guide ↗THE READING LIST
Field guides
Useful methods, clear examples, and references you can follow.
Write what the file claims to carry
A camera feature that says it signs every pixel is a claim about the file. Record the claim before you trust a handoff.
Read the guide ↗Keep missing values distinct from empty CSV cells
Use a documented status column so unknown, intentionally blank and present CSV values survive export without turning ordinary text into a hidden code.
Read the guide ↗Name the field that must survive a round trip
Before you export a table, name the field that has to come back unchanged, then check that field after the file returns.
Read the guide ↗Read CSV without losing the record
A small inventory example explains quoted commas, multiline fields, empty cells and the difference between a line and a record.
Read the guide ↗Choose a CSV or JSON handoff
Preserve identifiers, repeated headings and empty values by deciding what the receiving tool should understand before choosing an export.
Read the guide ↗Handle formula-like CSV text deliberately
Separate a faithful data export from a spreadsheet viewing copy, and record exactly which values changed.
Read the guide ↗