Your CSV stays in this browser tab.
The file and pasted text are parsed on your device. This page does not upload or retain the file, filename, column names, cell values or generated risk table. Refreshing closes the current working copy. Nothing is written back to the original file.
Limited experiment measurement
The page sends minimal measurements to Umami at stats.topxup.com, operated by this site’s owner. It sends fixed events for a visit, a search-attributed entry, a completed check, sample use and interest in the proposed paid report. Page host/path, browser language and standard connection information can also be processed by the analytics service. Referrer is used locally to classify a search entry; its URL is not sent by this page. Query strings and URL fragments are excluded. CSV data is not sent as event properties.
A local browser flag suppresses repeated events for this experiment. Clearing browser storage, changing browser or using another device can cause repeat counts; blocking analytics can cause undercounting. These are browser signals, not verified unique people. This is not a claim that analytics collects no information.
No payment or contact collection
The proposed $9 batch report is not available. Clicking its interest button sends a fixed analytics event and displays a local acknowledgment. It does not charge money, create an order, reserve delivery, collect an email or promise a release date.
Safe interpretation
Checks are heuristic. Excel behavior depends on version, locale, settings and import path. No result certifies a file safe, recovers lost information or guarantees conversion behavior. Formula-like values are displayed as text, never executed by this page.