File Type : Notes Database (Older Form) (IBM)
Compatible with (Win10, Win8, Win7, Vista and WinXP)
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Database file created by Lotus Notes 4.x; contain a list of contacts, text notes, e-mail messages, calendars, and other information; stores structured data for personal and business organizational management.
"Domino," the Notes server program, was released in 1996 along with Notes 4.5. Many following updates were only release for Windows, but Lotus Notes 7.0.2 was released for Mac OS X in 2006.
You can see a list of software programs here on www.easyfileopener.org that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.
Software that can be used to open NS4files: