is there any one who know about File Extension 2 , yes itz File Extension 2 , i recently save my psd file on my PC after few hours i cn't open these files , the file size is 16mb , photoshop give an error say could not open this file format ...... is there any one hwo know how to open this format in photoshop .......

I believe a "file extension 2 is a corrupt file. Another common .2 problem occurs when the Windows registry contains invalid instructions or has had references to .2 files removed by spyware or other processes. Run a good registry cleaner to resolve many common .2 errors including file corruption.

Hope this helps.

i use Ccleaner but nothing happen , i just complete my today's chop then i save it in maximize compatibly , but when i open the file nxt time the extention was change ....
i found this while searching on net... http://www.file-extension.com/files/PSD/

Is this the only file that won't open? If so the file is corrupted. If not then the OS maybe corrupted, then try a system restore and try again. You should state which OS you are on and what version of PS you are using.

3 files has been corrupted they are frm same project , im using win7 and PS ver. cs5 , cn't find anything to convert it back to psd format...

Can you post a link to download a sample corrupted file for inspection.

Also, try the free "PSD Extract/Recover tool" to extract layers from the corrupted file. http://www.telegraphics.com.au/sw/

how to use this tool...?

How to use
----------

Once the plugin is placed in Photoshop's Plug-ins folder, and Photoshop
has been relaunched,

1. File menu -> Open...
2. Select the PSD file you wish to extract from
3. Choose "PSD Extract/Recover" from the format popup menu
4. Click OK, and if the document has layers, a dialog appears for you
to choose which layer you wish to extract (or the merged image)
5. Click OK. The layer should appear in a new window.

You can re-open the same PSD to grab more layers.


Notes
-----
** The plugin may override Photoshop's built-in PSD/PSB format reader.
If you find Photoshop defaulting to this plugin, just remove it and
re-launch Photoshop. **

Trying to open PSBs larger than 30,000 pixels high or wide won't work.
Smaller ones will be fine, however.

In older versions of Photoshop (Mac 5.5 for instance), you will need to
check [X] Show All Files in the Open dialog, in order to choose this
plugin. (Otherwise PSDs will be opened by Photoshop's built-in format.)

ONLY image layers are extracted (not any other layer type).

There is currently no access to layer masks, alpha channels and spot
channels. This is planned to be added. If you need this right now,
or if you need to extract/recover many layers, you can use
my psdparse tool:

http://www.telegraphics.com.au/sw/#psdparse

This tool processes and exports ALL layers and channels of a PSD to PNG
in one operation.

P.S. I couldn't make it work on a 64-bit Win7/64-bit PS CS5, but it works in 32-bit PS CS5. I don't have any corrupted PSDs to try it on.

thnx for yr feedbacks , but i can find the 1st psd file of project hope i make the layers again .....thnx vokaris but i cn't find that tool in cs5 ,i can paste as u say to plugin folder , anyway i do this thing another time .. thnx for ye help ....

1. place the filter in the plug-in folder
2. start photoshop
3. go to file - open
4. look at the "files of type" options (default is All Formats) - select PSD Extract/Recover