CSV or XLSX? Make every field count.
Navigate CSV quoting, workbook sheets, leading zeroes, date ambiguity, and correction-friendly previews without losing the meaning of your data.
Read the guideImport Notes · Category
Spreadsheets
A spreadsheet is a familiar handoff, but its cells still need an explicit interpretation. Explore headers, quoting, workbook structure, leading zeroes, dates, and correction reports. Use the guide alongside a representative source export rather than a perfect sample that hides the difficult cases.
Make the reading practical
Choose one representative source from your own workflow, remove sensitive information, and compare its requirements with the examples in these guides. Write down the expected destination values before deciding which transformations to automate.
Use the local mapping example for a small first exercise. The reading paths connect these topics to broader implementation questions.