OLKファイルの拡張子は、Microsoftによって開発されたOutlookのアドレス帳ファイルとも呼ばれている。それは、人々や組織の連絡先情報が含まれているアドレス帳に使用されるファイル形式です。これは、名前、電話番号、アドレス、タイトル、組織データ、およびその他の連絡先情報を記憶する。それは、連絡先を保存し、ロードするために使用されます。 Outlookは、Outlookアドレス帳をOutlookがデータストアとは別のファイルとしてアドレス帳を保存していないため、代わりに物理アドレス帳の仮想アドレス帳です。 Outlook.exeの/ Lのolk_filename:OLKファイルは、次のコマンドを入力して、Outlook 2003で、手動で開くことができます。 OLKファイルは、Microsoft Word 2003のにより開閉差し込み印刷およびその他の文書操作に使用することができる。 OLK形式のファイルは、Microsoft Windowsプラットフォームでは、Microsoft Outlook 2010およびMicrosoft Word 2010で開くことができます。 Outlookの連絡先は、より頻繁に個人アドレス帳(。PAB)ファイルとして保存されます。
Outlook Express is an email and news client that is integrated with Internet Explorer versions 4.0 through 6.0. It is also bundled with a number of versions of Microsoft Windows, from Windows 98 to Windows Server 2003, and is available for Windows 3.x, Windows NT 3.51, Windows 95 and Mac OS 9. In Windows Vista, Outlook Express was outdated by Windows Mail, then again by Windows Live Mail as separate software in Windows 7. Microsoft Entourage, sold as part of Microsoft Office for Macintosh, has changed the Macintosh version. Outlook Express is a diverse application from Microsoft Office Outlook. The two programs do not share a common codebase, but do share a common architectural philosophy. The similar names lead many people to incorrectly conclusion that Outlook Express is a stripped-down version of Microsoft Office Outlook. Outlook Express utilizes the Windows Address Book to store contact information and incorporates tightly with it. On Windows XP, it also joins together with Windows Messenger.
Microsoft Word is a word processor program that is packed in the Microsoft Office Suite. It is developed by Microsoft Corporation, generating a .doc file extension when the file is saved. A document file format (.doc) is a text or binary file format for saving documents on a storage media, mainly for computer use, like typing text, charts, tables, page formatting, graphs, images and other documents whose content is created and edited. Contents of these documents are printable in any sizes and are capable to open in other devices provided that its operating system is able to read DOC files. This .doc file extension has become extensive de facto standard for office documents, but it is an owned format and is not always totally supported by other word processors. A variety of programs that is able to open this type of file, and different operating systems and have installed programs that can open a 1ST file are: Microsoft Word, Microsoft Notepad, Microsoft Word, IBM Lotus WordPro, and Corel WordPerfect.