Similar to the original post, except I want to programmatically direct my Mathematica 13.2.1 front-end to export TraditionalForm expressions as images or (better) as a MathML to Excel version 16.72. For example:

modelC2 = HoldForm[Plus[M,Times[A[1],Cos[Plus[Times[Times[2,Pi,Power[\[Tau][1],-1]],t],\[Phi][1]]]],Times[A[2],Cos[Plus[Times[Times[2,Pi,Power[\[Tau][2],-1]],t],\[Phi][2]]]]]];

How would I go about exporting modelC2 to Excel programmatically from within Mathematica preserving its TraditionalFormat in Excel?

NOTE: Applying a ReleaseHold on modelC2 and then exporting it to Excel does work, except that I've lost the TraditionalForm format. I've had zero success exporting MathMLFormat @ modelC2, although when I manually copy and past the MathML code from Mathematica to Excel, it almost works -- but I do not want to do that manual copying and pasting with hundreds of formulas.

Thanks for your reply. The method, you suggested, worked perfectly. And it seems that I am going to use it. However, I was hoping that the Mathematica-Command "Export" can do that automatically, since I have a list of formulas that I want to export to Excel.

Regards