Im trying to create an excel file....but while running on the server the following error comes

Microsoft Office Excel cannot open or save any more documents because there is 开发者_Go百科not enough available memory or disk space.

To free disk space, delete files you no longer need from the disk you are saving to.

any idea why???

Try checking if you have enought diskspace on your Harddrive. Also open task manager and close and open EXCEL.EXE tasks that are running.

Add following attribute in machine.config

<processModel userName="System" password="AutoGenerate"/>. 

Updated

Follow following steps

1. Go to run type dcomcnfg
2. Click >Component services >Computers >My Computer>Dcom config> and select Microsoft Excel Application>
3. Right Click on Microsot Excel Application>Properties>Give Asp.net Permissions
4. Select Identity table >Select interactive user >select ok

Also check out this link for more details