Hi Marcus,
Thank you very much for using Syncfuion products.
We have tried with MSExcel to set space delimiter in Custom format and it belongs to Accounting type format.
In Currency format type we are not able to set 'space' delimiter.
We can set the Number formats and Text format types of the cell with 'space' delimiter.
Here, we are unable to set the 'space'delimiter for the number format using XlsIO, and this can be suspected to be an issue.
We have forwarded to the development team for more analysis.
So we request you to open a new direct-trac incident with a simple issue reproducing sample for further follow up on this issue.
Direct-Trac Link:
https://www.syncfusion.com/account/login?ReturnUrl=%2fsupport%2fdirecttrac%2fincidentsThe backslash(\) used to display any character other than "space" in between the numbers in XlsIO.
Please, let us know if you require any further clarifications.
Thanks,
Sridhar.S