When we talk about file types, we talk about files containing data in a specific format for use by a particular program or programs.

Many readers replied to yesterday's item about long file names being truncated, especially with hexadecimal text substituted for the deleted portion of the name. Some of the replies overlap in the ...

How to Copy File Names in Windows Explorer. If your business works with and shares numerous files, copying file names can save a lot of time. Typing a file name is easy when the name is short, but ...

MLStrand56 complained to the Windows forum about Windows' inability to save file names containing punctuation.

What does long file names actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

To fix the “not a valid file name” error, remove all special characters from the file name that aren’t valid in Outlook. Also, look for any spaces before or after the file name.

Rename the file including the date. Use dashes to separate portions of the name: the Windows operating system excludes certain characters from file names, but not dashes.

Instead of only using alphanumeric text for file names, you can also include emoticons and other Unicode symbols.