What version of Microsoft Office first allowed file names longer than eight characters?
Long file names – names that do not conform to the 8.3 format enforced by MS-DOS – first came in with Windows 95 and its companion, Windows NT 3.51. The corresponding MS Office version would be Office 95. http://en.wikipedia.org/wiki/8.3_filename The change was part of the extended directory format for FAT-allocated volumes, called VFAT, later for FAT32 and NTFS. To maintain compatibility with MS-DOS, files that aren’t created with 8.3 filenames still get them. Open a command prompt (CMD.EXE on later systems) and type DIR /X to see an example of the mapping.