This is Sony Xperia E1 D2005 stock ROM in .FTF extension. The package can be easily flashed via Sony Flashtool.
Note that this is the official firmware of Xperia E1 D2005 and it is shared here as is, without any form of modification.
Xperia E1 D2005 – Download
How to flash Xperia E1 D2005 stock firmware
To flash this firmware package on your device, follow this guide.