COSESAI

Diff Formatter Field Guide: When Four Output Styles Beat One Default Diff

By xiezixing 2026年8月31日

One diff per pipeline is a trap. The Diff Formatter at Elysia Tools exposes four output styles for the same two inputs, and the right choice for a handoff turns a 30-line wall of + / - markers into a 6-row table that a PM, a backend reviewer, and a frontend reviewer can all read in under a minute.

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XLSX Freeze Pane Manager Field Guide: Lock the Headers Without Clicking View 47 Times

By xiezixing 2026年8月12日

Lock the headers, scroll the data. When a workbook grows past a few screens, the…

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Turn Excel into a Markdown Table Reviewers Can Read

By xiezixing 2026年8月2日

A spreadsheet can hold the right answer and still be the wrong artifact. Attach an…

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Stop Typing Excel Formulas from Memory: A Field Guide to the Twelve Functions You Actually Use

By xiezixing 2026年8月2日

A formula builder for the twelve Excel functions that cover 90% of everyday spreadsheet work — pick, fill, paste, audit the logic instead of the syntax.