I found out that ٍEPPlus has problem with Persian fonts like "B Nazanin". when I open an existed excel file and change some cell values, then saving using SaveAs method it becomes fail in saving persian fonts correctly.
when you open saved file in MS Excel you can see that the font is not correct. you can see correct font when you change the cell's font to another font and then change it again to "B Nazanin".
by checking Styles.xl file in back of excel file we can see that 'charset' tag of persian fonts are removed.
that caused font does'nt affect on strings and just showing its name in font name.
by adding this removed tag to styles it becomes fine.
Comments: Please answer and fix this problem. you must insert a tag in style file that specified charset.
when you open saved file in MS Excel you can see that the font is not correct. you can see correct font when you change the cell's font to another font and then change it again to "B Nazanin".
by checking Styles.xl file in back of excel file we can see that 'charset' tag of persian fonts are removed.
that caused font does'nt affect on strings and just showing its name in font name.
by adding this removed tag to styles it becomes fine.
Comments: Please answer and fix this problem. you must insert a tag in style file that specified charset.