Set swBom = swBomAnn.GetAnnotation
        
        For i = 0 To swBom.GetTextFormatCount - 1
            Set swTextFormat = swBom.GetTextFormat(i)
            swTextFormat.CharHeight = 0.008
            swTextFormat.Bold = False
            swTextFormat.Italic = False
            swTextFormat.TypeFaceName = "Calibri"
        
            boolstatus = swBomTable.SetTextFormat(i, False, swTextFormat)

Code runs without error, but it doesn't change the font. I assume I'm not assigning it correctly.

I also tried

boolstatus = swBomTable.SetColumnCustomProperty(i, swTextFormat)

I was also thinking of changing the Font of tables under document property before inserting my BOM by using:

boolstatus = swModel.Extension.SetUserPreferenceTextFormat(swUserPreferenceTextFormat_e.swDetailingTableTextFormat, swUserPreferenceOption_e.swDetailingNoOptionSpecified, <Value>)

But I have no idea what to enter under <value>.