Detlef Lewin

@Detlef Lewin

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Germany. Near the tri-border with Netherlands and Belgium.

Member since July 16, 2016

Experience with Excel as an employee since probably Excel 5.0. Experience with Excel as a private user since Excel 2007. In depth experience with Excel since 2009 when I started participating in forums and subscribing to various blogs and channels. Learned lots of great stuff.

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