You can save any email as a PDF by printing it as such, but if you need to save emails to your hard drive quite often, this Chrome extension lets you PDF an email ...

A file extension is a suffix that is added to the end of a file name after a dot. It is usually two to four letters long. File extensions help Windows and other operating systems to know the standard ...

Tax Exchange Format, or TXF, is an extension for files containing tax-related data such as income, expenses and stock transactions. This standard file format is supported by several financial software ...