Hundreds, if not thousands. Pictures/Images alone have nearly 10 types of file formats (jpg, bmp16, bmp256, 24bit bmp, dib, gif, tiff, png). Other programs have unique file formats as well. Notepad, for example, uses .txt, while Word uses .doc, and MS Excel uses .xls. There are too many file formats to name, assuming you can even name them all.
Well, I would recommend converting PDF format files to excel format files with a PDF format file to excel format file converter. There are many PDF format file to excel format file converters offered for use.
No, the MOV file format is not the same as the MP4 file format.
You can convert an Excel file to many different formats. Just Save As and select the format you like.
ndbm format
Ubuntu uses many file formats, many of which are shared with Windows and Macintosh. The partition format the Ubuntu generally uses is an ext4 filesystem.
file format for samsung gt-c6712 is .smt type file format
A Graphics Interchange Format file is a picture format file.
Interchange File Format was created in 1985.
ECW - file format - was created in 1998.
Zip - file format - was created in 1989.
Many novels can be found in pdf format. They are just a search engine away.
The difference between an open file format and a proprietary file format is the ability to share. Open formats make sharing between computers easier.