That formula will work if there are no values in the columns you are skipping. If that is the case, did you confirm it with CTRL-SHIFT-ENTER rather than just Enter?
<b>Sheet1</b><br /><br /><table border="1" cellspacing="0" cellpadding="0" style="font-family:Calibri,Arial; font-size:11pt; background-color:#ffffff; padding-left:2pt; padding-right:2pt; "> <colgroup><col style="font-weight:bold; width:30px; " /><col style="width:64px;" /><col style="width:64px;" /><col style="width:64px;" /><col style="width:64px;" /><col style="width:64px;" /><col style="width:64px;" /><col style="width:64px;" /><col style="width:64px;" /><col style="width:64px;" /><col style="width:64px;" /><col style="width:64px;" /><col style="width:64px;" /><col style="width:64px;" /><col style="width:64px;" /><col style="width:64px;" /><col style="width:64px;" /><col style="width:64px;" /><col style="width:64px;" /><col style="width:64px;" /></colgroup><tr style="background-color:#cacaca; text-align:center; font-weight:bold; font-size:8pt; "><td > </td><td >C</td><td >D</td><td >E</td><td >F</td><td >G</td><td >H</td><td >I</td><td >J</td><td >K</td><td >L</td><td >M</td><td >N</td><td >O</td><td >P</td><td >Q</td><td >R</td><td >S</td><td >T</td><td >U</td></tr><tr style="height:18px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >1</td><td style="text-align:right; ">50</td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td></tr><tr style="height:18px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >2</td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td></tr><tr style="height:18px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >3</td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td></tr><tr style="height:18px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >4</td><td >Engineer</td><td > </td><td style="text-align:right; ">8</td><td > </td><td > </td><td > </td><td style="text-align:right; ">8</td><td > </td><td > </td><td > </td><td style="text-align:right; ">8</td><td > </td><td > </td><td > </td><td style="text-align:right; ">8</td><td > </td><td > </td><td > </td><td style="text-align:right; ">5</td></tr><tr style="height:18px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >5</td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td><td > </td></tr><tr style="height:18px ;" ><td style="font-size:8pt; background-color:#cacaca; text-align:center; " >6</td><td >Engineer</td><td > </td><td style="text-align:right; ">5</td><td > </td><td > </td><td > </td><td style="text-align:right; ">1</td><td > </td><td > </td><td > </td><td style="text-align:right; ">1</td><td > </td><td > </td><td > </td><td style="text-align:right; ">2</td><td > </td><td > </td><td > </td><td style="text-align:right; ">4</td></tr></table><br /><table style="font-family:Arial; font-size:10pt; border-style: groove ;border-color:#00ff00;background-color:#fffcf9; color:#000000; "><tr><td ><b>Spreadsheet Formulas</b></td></tr><tr><td ><table border = "1" cellspacing="0" cellpadding="2" style="font-family:Arial; font-size:9pt;"><tr style="background-color:#cacaca; font-size:10pt;"><td >Cell</td><td >Formula</td></tr><tr><td >C1</td><td >{=SUM(IF<span style=' color:008000; '>(C4:C455="Engineer",E4:U455)</span>)}</td></tr></table></td></tr><tr><td ><span style=' font-family:Arial,Arial; font-size:9pt; font-weight:bold;'>Formula Array:</span><span style=' font-family:Arial,Arial; font-size:9pt;'><br />Produce enclosing </span><span style=' font-family:Arial,Arial; font-size:9pt; font-weight:bold;'>{ }</span><span style=' font-family:Arial,Arial; font-size:9pt;'> by entering<br />formula with CTRL+SHIFT+ENTER!</span></td></tr></table> <br /><br /><span style="font-family:Arial; font-size:9pt; font-weight:bold;background-color:#ffffff; color:#000000; ">Excel tables to the web >> </span>