Since the release of Microsoft Office 2007, all Outlook contacts are stored in a PST file. Copying your Outlook account's PST file to another computer or drive is important so you have backup copy all ...

QuickBooks manages everything from your company's account receivables to electronic bank transfers. The application stores your company's finances and related data in a single file ending with the ...

If you have a file on your computer that may have been downloaded from the internet or copied from some other computer, then when you try to open it, you may receive a warning. Windows has blocked ...