How to disable auto strikethrough

I can’t turn off auto strikethrough in columns A.B and C. The other columns are fine. Auto bold strikeout and underline is unchecked.

Thanks.

Check cell format being set to Font Decoration Strikethrough Single in Right click - Format Cells -> Tab: Font Effects in columns A, B and C

Tools → AutoCorrect Options → Options Tab → Uncheck The Mark "

"
BR/ ruhul625

This would affect all cells and not only those in columns A, B and C