How to fix "ERROR: invalid byte sequence for encoding "UTF8"" in Excel, Google Sheets, databases
ERROR: invalid byte sequence for encoding "UTF8"
What this error means
The file is in a different encoding (often Windows-1252) and contains accented characters.
Why it happens
- Exported from older Excel or Windows software
- Files merged from different sources
How to fix it
- Upload it here: we convert every character to proper UTF-8 while keeping valid text untouched
About CSV file files
CSV is plain text: one row per line, values separated by commas. Most CSV "errors" are encoding problems (accents turning into garbage), stray NULL bytes, or rows with the wrong number of columns.