Invalid TSV Example: Extra Tab Breaks Column Count
Validate TSV (Tab Separated Value) files for integrity and structure offline.
Result
This page opens the TSV validator preloaded with an inventory export where one product name — "Laptop Stand Aluminum" — got an extra tab typed in the middle instead of a space, splitting it into two fields. The validator runs on load, so the failure shown below is a live, real check, not a staged screenshot.
This is a very ordinary way real TSV files break: when data is typed or pasted by hand, a stray tab keystroke inside what should be a single product name or description silently adds an extra column to that one row. Because TSV has no visual delimiter the way a comma does, an extra tab is easy to miss just by looking at the text — the row simply has one more field than the header defines.
The result panel below points to the exact row where the count breaks. Compare it against the valid-inventory-tsv preset linked here to see the same three columns without the stray tab, and the stray-quote-tsv preset for a different, equally common TSV failure mode.