perl /Users/ncp/Documents/RegularDocuments/StandardFiles/TeXInfo/LaTeXdiff/latexdiff-so  As_used/F_251_2025Sp_WorkSheetVersion_Soln.tex  Corrected/F_251_2025Sp_WorkSheetVersion_Soln.tex >  Corrected/Soln_Diff.tex

perl /Users/ncp/Documents/RegularDocuments/StandardFiles/TeXInfo/LaTeXdiff/reverselatexdiff-so   As_used/F_251_2025Sp_WorkSheetVersion_Soln.tex  Corrected/F_251_2025Sp_WorkSheetVersion_Soln.tex >  Corrected/Soln_ReverseDiff.tex

diff  As_used/F_251_2025Sp_WorkSheetVersion_Soln.tex  Corrected/F_251_2025Sp_WorkSheetVersion_Soln.tex >  Corrected/Soln_dfile.txt