Actual deterministic evidence
Illegal quote or CSV parse error
A malformed quote prevents reliable CSV parsing. Rows and fields cannot be trusted until the CSV structure parses consistently.
Minimal synthetic input
URL handle,Title,Price
bad,Broken "quote,10.00
Actual Q-Surface result
| Issue code | Severity | Message | Row | Field |
|---|---|---|---|---|
CSV_ILLEGAL_QUOTE_OR_PARSE_ERROR | critical | CSV parse problem: Unexpected quote inside unquoted field. | — | — |
Repair, unresolved work, and rerun
No deterministic safe fix changed this CSV; edit the original sample manually.
CSV_ILLEGAL_QUOTE_OR_PARSE_ERROR: Check quotes, commas, and line breaks before upload.
Next: Check quotes, commas, and line breaks before upload. Rerun the edited CSV through Q-Surface before attempting import.
Processing boundary and limitations
Your CSV is processed in your browser. No Shopify login. No store connection. No CSV storage.
- The parser reports the detected structural problem but cannot infer the intended text.
- Q-Surface does not guarantee Shopify import success and is not affiliated with Shopify.
Source classification: quality_check. Represented Q-Surface version: 0.7.31.
Related evidence
Try the evidence, then check your own file
Check my own CSV with this mode and source context
The synthetic result demonstrates this public case only. It does not imply that your own CSV has the same defect. The founding passage is self-serve, browser-local, and requires no contact or file sharing.