today i have been looking at the different types of file formats that i use on the macs
File formats:
.GIF
.PSD PHOTOSHOP
.AI ILLUSTRATOR
.TIFF
.IND INDESIGN
.DOC MICROSOFT WORD
.PNG
.XLS MICROSOFT EXCEL
.JPG
.PDF
.RAW PHOTOSHOP/LIGHTROOM
.PPT
to the left are some of the documents on my mac, at the end of each document there is the type of file format they are saved as.