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In my view, this is not the ideal solution. The most
standard solution to add euro support in LaTeX is by using
\texteuro and load the \usepackage{textcomp} command in the
preamble. This way, all fonts which natively support the
euro sign and support the TS1 encoding, will automatically
get their native euro sign into TeX. It will also deliver a
real Computer Modern Euro sign in your document.