Numbers with comma are displaying as text value

I am using dhtmlxSuite 2012 Rel.1 (DHTMLX 3.5) Professional edition build 120822
In excel download facing 2 issues.
When numbers with comma symbol is assigned as text.
If text format contains only number its assigned as number format.

Please find attached word document, i attached screenshot of excel.

using php

Aligning pure numbers and text strings differently is the feature of excel
During data export, grid doesn’t force align, it just put values in cells, so while loading in excel data will be aligned according to the excel’s rules