Hi @frsisani,

1 - After your Reader you can use the transformer StatisticsCalculator to have a count of features in Attribute = number.

2 - Use the transformer ExpressionEvaluator to calculate @Value(number)/5 and generate the attribute group.

3 - Use the transformer Count to generate the attribute _count and after another transformer ExpressionEvaluator = result

int(@Value(number/@Value(group))

4 - Connect the output port ExpressionEvaluator in your Write file and set the configuration CSV File Name = _result

5 - Set in Navigator the Option Fanout.

Attached the Workspace. - workspace-fanout-split.fmw

Thanks,

Danilo

Alternatively a Counter/AttributeRangeFilter combination might be useful.

I also note a Grouper transformer on the FME Hub, although I haven't tried it myself.

If the order of the records is irrelevant, I would use a ModuloCounter (set to 5), and fanout based on the _modulo_count. That way the features aren't being kept in memory to determine the total number of features (StatisticsCalculator).

I would just use a feature type fanout expression like this.

output_@Evaluate(@int(@Count()/2000000))

I would just use a feature type fanout expression like this.

output_@Evaluate(@int(@Count()/2000000))