Reply To: Formatted tables not importing correctly

I just created a very simple 1-row table in Excel (Mac 2011), saved as xlsx and imported it. In one of the cells, I had some text underline and some with strikeout. It imported into InDesign with the formatting intact.
Try making a duplicate of your file, then deleting all but one or two rows to see if it works. My guess is that something is interfering with the formatting. For example, perhaps a character style is being applied to the text?