QuickLookCSV

The plugin adds Quick Look support for CSV‑type files on macOS 10.5 and later, allowing users to preview the contents without opening a spreadsheet application. It detects common delimiters such as commas, tabs, semicolons and pipes, and displays a thumbnail icon together with basic metadata like the number of rows and columns. Installation is performed by copying the supplied qlgenerator file into the user’s or system’s QuickLook folder, after which the preview becomes available in Finder and other file browsers.

Targeted at anyone who works with plain‑text tables on a Mac, the tool is useful for developers, data analysts, and general users who need a quick visual check of CSV data. It supports standard CSV formats and provides a visual representation directly from the file system, reducing the need to launch external editors.

The project is released under the Apache 2.0 license, is maintained on GitHub, and is marked as stable. Earlier versions included workarounds for FileMaker TSV files, which were removed in the current release.