We are create a quote from the "quote by spreadsheet" option with "rich XML spreadsheet style .xml"

We are create a quote from the "quote by spreadsheet" option with "rich XML spreadsheet style .xml" but send us error anyone know how the application validates the lines to import the file? Which is the field?

Module: Sourcing

Responsbaility: Sourcing_administrator

Sourcing -> Sourcing Home Page -> Negotiations -> select number of negotiation

Actions -> Create Surrogate Quote -> Quote by spreadsheet -> XML spreadsheet  rich style .xml -> Export (B)

We need know where is the fields where the aplication validate the file when import