diff --git a/bits/45_styutils.js b/bits/45_styutils.js
index 331be37..a854375 100644
--- a/bits/45_styutils.js
+++ b/bits/45_styutils.js
@@ -89,6 +89,10 @@ function process_col(coll/*:ColInfo*/) {
 	if(coll.customWidth) delete coll.customWidth;
 }
 
+var DEF_DPI = 96, DPI = DEF_DPI;
+function px2pt(px) { return px * 72 / DPI; }
+function pt2px(pt) { return pt * DPI / 72; }
+
 /* [MS-EXSPXML3] 2.4.54 ST_enmPattern */
 var XLMLPatternTypeMap = {
 	"None": "none",
diff --git a/bits/67_wsxml.js b/bits/67_wsxml.js
index dd8ee8b..5ab4e7c 100644
--- a/bits/67_wsxml.js
+++ b/bits/67_wsxml.js
@@ -292,7 +292,7 @@ return function parse_ws_xml_data(sdata, s, opts, guess, themes, styles) {
 }; })();
 
 function write_ws_xml_data(ws/*:Worksheet*/, opts, idx/*:number*/, wb/*:Workbook*/, rels)/*:string*/ {
-	var o = [], r = [], range = safe_decode_range(ws['!ref']), cell, ref, rr = "", cols = [], R=0, C=0;
+	var o = [], r = [], range = safe_decode_range(ws['!ref']), cell, ref, rr = "", cols = [], R=0, C=0, rows = ws['!rows'];
 	for(C = range.s.c; C <= range.e.c; ++C) cols[C] = encode_col(C);
 	for(R = range.s.r; R <= range.e.r; ++R) {
 		r = [];
@@ -302,7 +302,18 @@ function write_ws_xml_data(ws/*:Worksheet*/, opts, idx/*:number*/, wb/*:Workbook
 			if(ws[ref] === undefined) continue;
 			if((cell = write_ws_xml_cell(ws[ref], ref, ws, opts, idx, wb)) != null) r.push(cell);
 		}
-		if(r.length > 0) o[o.length] = (writextag('row', r.join(""), {r:rr}));
+		if(r.length > 0) {
+			var params = {r:rr}
+			if(rows && rows[R]) {
+				var row = rows[R];
+				if(row.hidden) params.hidden = 1;
+				var height = -1;
+				if (row.hpx) height = px2pt(row.hpx);
+				else if (row.hpt) height = row.hpt;
+				if (height > -1) { params.ht = height; params.customHeight = 1; }
+			}
+			o[o.length] = (writextag('row', r.join(""), params));
+		}
 	}
 	return o.join("");
 }
@@ -324,7 +335,7 @@ function write_ws_xml(idx/*:number*/, opts, wb/*:Workbook*/, rels)/*:string*/ {
 	o[o.length] = (writextag('dimension', null, {'ref': ref}));
 
 	/* TODO: store in WB, process styles */
-	if(opts.sheetFormat) o[o.length] = (writextag('sheetFormatPr', null, {defaultRowHeight:opts.sheetFormat.defaultRowHeight||'16', baseColWidth:opts.sheetFormat.baseColWidth||'10' }))
+	if(opts.sheetFormat) o[o.length] = (writextag('sheetFormatPr', null, {defaultRowHeight:opts.sheetFormat.defaultRowHeight||'16', baseColWidth:opts.sheetFormat.baseColWidth||'10' }));
 
 	if(ws['!cols'] !== undefined && ws['!cols'].length > 0) o[o.length] = (write_ws_xml_cols(ws, ws['!cols']));
 	o[sidx = o.length] = '<sheetData/>';
diff --git a/tests/write.js b/tests/write.js
index 2b626c1..46752e1 100644
--- a/tests/write.js
+++ b/tests/write.js
@@ -6,7 +6,9 @@ var data = [
 	[1,2,3],
 	[true, false, null, "sheetjs"],
 	["foo","bar",new Date("2014-02-19T14:30Z"), "0.3"],
-	["baz", null, "qux", 3.14159]
+	["baz", null, "qux", 3.14159],
+	["hidden"],
+	["visible"]
 ];
 
 var ws_name = "SheetJS";
@@ -18,6 +20,13 @@ var wscols = [
 	{wpx:125}
 ];
 
+var wsrows = [];
+wsrows[0] = {hpt: 12}; // "points"
+wsrows[1] = {hpx: 16}; // "pixels"
+wsrows[2] = {hpt: 18};
+wsrows[3] = {hpx: 24};
+wsrows[4] = {hidden:true}; // hide row
+wsrows[5] = {hidden:false};
 
 console.log("Sheet Name: " + ws_name);
 console.log("Data: "); for(var i=0; i!=data.length; ++i) console.log(data[i]);
@@ -50,11 +59,14 @@ ws['E1'] = {t:'n', f:"TRANSPOSE(A1:D1)", F:"E1:E4"};
 ws['E2'] = {t:'n', F:"E1:E4"};
 ws['E3'] = {t:'n', F:"E1:E4"};
 ws['E4'] = {t:'n', F:"E1:E4"};
-ws["!ref"] = "A1:E4";
+ws["!ref"] = "A1:E6";
 
-/* TEST: column widths */
+/* TEST: column props */
 ws['!cols'] = wscols;
 
+/* TEST: row props */
+ws['!rows'] = wsrows;
+
 /* TEST: hyperlink note: Excel does not automatically style hyperlinks */
 ws['A3'].l = { Target: "http://sheetjs.com", Tooltip: "Visit us <SheetJS.com!>" };
 
diff --git a/xlsx.flow.js b/xlsx.flow.js
index 4ef78ee..3beca0b 100644
--- a/xlsx.flow.js
+++ b/xlsx.flow.js
@@ -5458,6 +5458,10 @@ function process_col(coll/*:ColInfo*/) {
 	if(coll.customWidth) delete coll.customWidth;
 }
 
+var DEF_DPI = 96, DPI = DEF_DPI;
+function px2pt(px) { return px * 72 / DPI; }
+function pt2px(pt) { return pt * DPI / 72; }
+
 /* [MS-EXSPXML3] 2.4.54 ST_enmPattern */
 var XLMLPatternTypeMap = {
 	"None": "none",
@@ -9193,7 +9197,7 @@ return function parse_ws_xml_data(sdata, s, opts, guess, themes, styles) {
 }; })();
 
 function write_ws_xml_data(ws/*:Worksheet*/, opts, idx/*:number*/, wb/*:Workbook*/, rels)/*:string*/ {
-	var o = [], r = [], range = safe_decode_range(ws['!ref']), cell, ref, rr = "", cols = [], R=0, C=0;
+	var o = [], r = [], range = safe_decode_range(ws['!ref']), cell, ref, rr = "", cols = [], R=0, C=0, rows = ws['!rows'];
 	for(C = range.s.c; C <= range.e.c; ++C) cols[C] = encode_col(C);
 	for(R = range.s.r; R <= range.e.r; ++R) {
 		r = [];
@@ -9203,7 +9207,18 @@ function write_ws_xml_data(ws/*:Worksheet*/, opts, idx/*:number*/, wb/*:Workbook
 			if(ws[ref] === undefined) continue;
 			if((cell = write_ws_xml_cell(ws[ref], ref, ws, opts, idx, wb)) != null) r.push(cell);
 		}
-		if(r.length > 0) o[o.length] = (writextag('row', r.join(""), {r:rr}));
+		if(r.length > 0) {
+			var params = {r:rr}
+			if(rows && rows[R]) {
+				var row = rows[R];
+				if(row.hidden) params.hidden = 1;
+				var height = -1;
+				if (row.hpx) height = px2pt(row.hpx);
+				else if (row.hpt) height = row.hpt;
+				if (height > -1) { params.ht = height; params.customHeight = 1; }
+			}
+			o[o.length] = (writextag('row', r.join(""), params));
+		}
 	}
 	return o.join("");
 }
@@ -9225,7 +9240,7 @@ function write_ws_xml(idx/*:number*/, opts, wb/*:Workbook*/, rels)/*:string*/ {
 	o[o.length] = (writextag('dimension', null, {'ref': ref}));
 
 	/* TODO: store in WB, process styles */
-	if(opts.sheetFormat) o[o.length] = (writextag('sheetFormatPr', null, {defaultRowHeight:opts.sheetFormat.defaultRowHeight||'16', baseColWidth:opts.sheetFormat.baseColWidth||'10' }))
+	if(opts.sheetFormat) o[o.length] = (writextag('sheetFormatPr', null, {defaultRowHeight:opts.sheetFormat.defaultRowHeight||'16', baseColWidth:opts.sheetFormat.baseColWidth||'10' }));
 
 	if(ws['!cols'] !== undefined && ws['!cols'].length > 0) o[o.length] = (write_ws_xml_cols(ws, ws['!cols']));
 	o[sidx = o.length] = '<sheetData/>';
diff --git a/xlsx.js b/xlsx.js
index 72896aa..9dfa83a 100644
--- a/xlsx.js
+++ b/xlsx.js
@@ -5404,6 +5404,10 @@ function process_col(coll) {
 	if(coll.customWidth) delete coll.customWidth;
 }
 
+var DEF_DPI = 96, DPI = DEF_DPI;
+function px2pt(px) { return px * 72 / DPI; }
+function pt2px(pt) { return pt * DPI / 72; }
+
 /* [MS-EXSPXML3] 2.4.54 ST_enmPattern */
 var XLMLPatternTypeMap = {
 	"None": "none",
@@ -9138,7 +9142,7 @@ return function parse_ws_xml_data(sdata, s, opts, guess, themes, styles) {
 }; })();
 
 function write_ws_xml_data(ws, opts, idx, wb, rels) {
-	var o = [], r = [], range = safe_decode_range(ws['!ref']), cell, ref, rr = "", cols = [], R=0, C=0;
+	var o = [], r = [], range = safe_decode_range(ws['!ref']), cell, ref, rr = "", cols = [], R=0, C=0, rows = ws['!rows'];
 	for(C = range.s.c; C <= range.e.c; ++C) cols[C] = encode_col(C);
 	for(R = range.s.r; R <= range.e.r; ++R) {
 		r = [];
@@ -9148,7 +9152,18 @@ function write_ws_xml_data(ws, opts, idx, wb, rels) {
 			if(ws[ref] === undefined) continue;
 			if((cell = write_ws_xml_cell(ws[ref], ref, ws, opts, idx, wb)) != null) r.push(cell);
 		}
-		if(r.length > 0) o[o.length] = (writextag('row', r.join(""), {r:rr}));
+		if(r.length > 0) {
+			var params = {r:rr}
+			if(rows && rows[R]) {
+				var row = rows[R];
+				if(row.hidden) params.hidden = 1;
+				var height = -1;
+				if (row.hpx) height = px2pt(row.hpx);
+				else if (row.hpt) height = row.hpt;
+				if (height > -1) { params.ht = height; params.customHeight = 1; }
+			}
+			o[o.length] = (writextag('row', r.join(""), params));
+		}
 	}
 	return o.join("");
 }
@@ -9170,7 +9185,7 @@ function write_ws_xml(idx, opts, wb, rels) {
 	o[o.length] = (writextag('dimension', null, {'ref': ref}));
 
 	/* TODO: store in WB, process styles */
-	if(opts.sheetFormat) o[o.length] = (writextag('sheetFormatPr', null, {defaultRowHeight:opts.sheetFormat.defaultRowHeight||'16', baseColWidth:opts.sheetFormat.baseColWidth||'10' }))
+	if(opts.sheetFormat) o[o.length] = (writextag('sheetFormatPr', null, {defaultRowHeight:opts.sheetFormat.defaultRowHeight||'16', baseColWidth:opts.sheetFormat.baseColWidth||'10' }));
 
 	if(ws['!cols'] !== undefined && ws['!cols'].length > 0) o[o.length] = (write_ws_xml_cols(ws, ws['!cols']));
 	o[sidx = o.length] = '<sheetData/>';