Thunderbird, a free, open-source desktop email client, lets users retrieve and read messages from a variety of email servers. One of Thunderbird's benefits for a small business is its ability to ...

Whether you're looking at documents regarding business analysis, performance reporting or financial management, you might come across a special type of Microsoft Excel spreadsheet with the file ...

The scenario is straightforward: You receive a message with an attachment in Mail and double-click the attached file to open it in the appropriate app. But what happens next is anything but ...