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I previously had a Windows 7 partition and a Ubuntu partition. When I formatted and reinstalled Windows 7, somehow the Ubuntu partition got corrupted. I can't open it and recover my files even with the Ubuntu Live CD. I can't fix grub because it doesn't find the Ubuntu partition either. I'm 100% sure I didn't delete the Ubuntu partition when I installed Windows 7, I know it's there but it's corrupted. Is there any way I can recover it, or at least recover the files?

This is sudo fdisk -l:

ubuntu@ubuntu:~$ sudo fdisk -l

Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders, total 625142448 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x86bf6871

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048      206847      102400    7  HPFS/NTFS/exFAT
/dev/sda2          206848   419637247   209715200    7  HPFS/NTFS/exFAT
/dev/sda3       419639294   625141759   102751233    5  Extended
/dev/sda5       616697856   625141759     4221952   82  Linux swap / Solaris

Thanks in advance!

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