why not use photoshop or gimp !!

don't worry, still their are plenty of solutions to fix an image not working in any image editor

Method-1
1 download irfan view and its plugins its FREE
http://www.irfanview.com/main_download_engl.htm

2 open your file in irfan view and save it as .PNG or .JPG(with other name)

3 now open the converted file in your image editor hopefully it will work...


Other solution that will work 100%(ok 100 is too much lts say 70%)

Method-2
1 open your web browser on Pc say opera web browser

2 in web browsers address bar type
this will show you your windows files in your browser

3 browse it to your file and click on it. This will open your file in your browser

4 now right click on image and select "copy" or "copy image" whatever

5 open your image editor and create a new document or (ctrl+n)

6 resize your new document to your image size(dimension's), or else it wont fit

7 press "Ctrl+V" or paste... this will paste your image(copied from web browser) in this document.. & hopefully you will be able to edit and save it..


GODbless you