Why are invalid comma formats treated as text instead of numbers in Read Excel Advanced?

What users observe

Some comma-formatted numbers are parsed, others are not.


What Sparkflows supports

Valid formats:

  • 1,234,567

  • 1,23,456

  • -1,23,456.78

  • (123,456)

Invalid formats:

  • 12,34,5

  • 1,2,3,456

  • Mixed grouping styles


Why invalid formats are rejected

Invalid grouping is ambiguous:

  • Could represent text

  • Could be formatting errors

Sparkflows treats such values as text or null instead of guessing.


Design principle

Incorrect numbers are worse than missing numbers.