Numbers exported as text

[ahmet6118]

We have migrated from Primefaces 11.0.0 to 13.0.0. We had no problem of getting excel exports in the previous version. But now numbers are exported as "Number stored as text" and not recognized as number. We have never used dataexporters nor postprocessors. I supply double value to exportValue attribute.

I have seen some solutions to manually format specific cells using postprocessors but it is quite impossible for me since I have as many as 250 datatables. What could be the soluiton ?

Thanks for taking your time.