How to Convert uploaded xlsx file to xls file using c#

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Hi all,

Please can anyone give the solution to Convert xlsx file to xls file format.
Here I am able to upload both xls and xlsx formats, but the thing is I need to Save both xls and xlsx formated files into xls format only ...

please help,

Thanks in Advance

Posted 28-Mar-13 0:50am

GaviGunda

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T Pat · Answer 1 · 2013-03-28T02:40:00

Solution 1

Here is the simple code to convert xlsx to xls

C#

// Create new XLSX file.
var xlsxFile = new ExcelFile();

// Load data from XLSX file.
xlsxFile.LoadXlsx(fileName + ".xls", XlsxOptions.PreserveMakeCopy);

// Save XLSX file to XLS file.
xlsxFile.SaveXls(fileName + ".xls");

Hope it will solve your problem :)

Posted 28-Mar-13 2:40am

T Pat

Comments

GaviGunda 28-Mar-13 8:45am

I tried this code but it shows many errors at LoadXlsx and XlsxOptions and SaveXls...
could you please tell what namespaces/libraries/Assemblies I need to include

T Pat 28-Mar-13 9:09am

use this library http://www.gemboxsoftware.com/spreadsheet/overview

GaviGunda 30-Mar-13 1:22am

I need to do only by using .net technology. External software I don't want to use. Please can you tell how to do without using external libraries/software.