Hi Adam,
Thank you for using the Syncfusion Products.
To apply the desired
numberformat to all cells then, we need to mention the range. Please refer to
the below code snippet which illustrates this. Also we have attached sample for
you reference. Could you please try this and let us know if this helps you.
Case 1. //If we use the below code, blank cells
has no effect.
sheet.Range.NumberFormat
= "@";
Case 2. //Setting Number Format as Text.
//WE need to mention the specified
Range.
sheet.Range["A1:XF1000"].NumberFormat = "@";
Please find the sample for "formatting cells" from
the below link and let us know if this helps you.
Sample link: Sample
Please let us know if you need any clarification.
Thanks and Regards,
Rajesh A.