Hello Anca,

Thank you for posting to Infragistics Community!

I have been looking into your question and an approach I could suggest, in order to achieve your requirement, is to subscribe to the rowExporting event of the excelExporter service and format the number column like the following:

this.excelExportService.rowExporting.subscribe(
    (args: IRowExportingEventArgs) => {
        args.rowData.Rate = this.currencyPipe.transform(
            args.rowData.Rate,
            this.getCurrency(args.rowData),
            'code'
       );
    }
);

I have prepared a small sample where I am formatting the data of the “Rate” column using CurrencyPipe’s transform method.

Here could be found my sample for your reference. Please test it on your side and let me know if you need any further information regarding this matter.

Looking forward to hearing from you.

Sincerely,
Riva Ivanova
Entry Level Software Developer