I mostly use .jpg, .eps, .tiff and .pdf formats for scientific publishing.
To open these files in Linux (Ubuntu)
For JPG files
eof fileName.jpg
For TIF files
eog fileName.tif
For .PNG files
eog fileName.png
For PDF files
evince fileName.pdf
For EPS files
To open these files in Linux (Ubuntu)
For JPG files
eof fileName.jpg
For TIF files
eog fileName.tif
For .PNG files
eog fileName.png
For PDF files
evince fileName.pdf
For EPS files