Excel Date to Text Online - Fixed yyyy-MM-dd Export

Need dates as fixed strings for APIs or legacy systems? Batch convert to yyyy-MM-dd text without TEXT formulas.

When to convert date to text?

REST APIs, fixed-width files, or avoiding locale reformatting need yyyy-MM-dd strings. Real date cells may become MM/dd/yyyy when copied elsewhere.

Using ComTools

Choose Date → Text, set output format, select columns, preview and download. Same as =TEXT(A1,"yyyy-MM-dd") in bulk.

Output format examples

Common: yyyy-MM-dd (ISO), yyyy-MM-dd HH:mm:ss (with time), yyyy/MM/dd. Custom format supports .NET/Excel codes.

vs Excel Format tool

Excel Format changes display but cells stay date type. This mode writes literal text strings.

Date to text tips

  • Use yyyy-MM-dd or ISO 8601 for APIs
  • Datetime columns: yyyy-MM-dd HH:mm:ss
  • New column keeps original dates for calculations
  • Export to CSV for programmatic reads