biff8 write column widths

.gitattributes

@@ -1,4 +1,3 @@
-*.*s        linguist-documentation
 *.html      linguist-documentation
 
 *.md        text eol=lf

bits/39_xlsbiff.js

@@ -967,6 +967,20 @@ function parse_ColInfo(blob, length, opts) {
 	if(opts.biff >= 5 || !opts.biff) o.level = (flags >> 8) & 0x7;
 	return o;
 }
+function write_ColInfo(col, idx) {
+	var o = new_buf(12);
+	o.write_shift(2, idx);
+	o.write_shift(2, idx);
+	o.write_shift(2, col.width * 256);
+	o.write_shift(2, 0);
+	var f = 0;
+	if(col.hidden) f |= 1;
+	o.write_shift(1, f);
+	f = col.level || 0;
+	o.write_shift(1, f);
+	o.write_shift(2, 0);
+	return o;
+}
 
 /* [MS-XLS] 2.4.257 */
 function parse_Setup(blob, length) {

bits/78_writebiff.js

@@ -164,6 +164,16 @@ function write_ws_biff8_hlinks(ba/*:BufArray*/, ws) {
 	delete ws['!links'];
 }
 
+function write_ws_cols_biff8(ba, cols, ws) {
+	if(!cols) return;
+	var cnt = 0;
+	cols.forEach(function(col, idx) {
+		if(++cnt <= 256 && col) {
+			write_biff_rec(ba, "ColInfo", write_ColInfo(col_obj_w(idx, col), idx));
+		}
+	});
+}
+
 function write_ws_biff8_cell(ba/*:BufArray*/, cell/*:Cell*/, R/*:number*/, C/*:number*/, opts) {
 	var os = 16 + get_cell_style(opts.cellXfs, cell, opts);
 	if(cell.v == null && !cell.bf) {
@@ -227,6 +237,8 @@ function write_ws_biff8(idx/*:number*/, opts, wb/*:Workbook*/) {
 	write_biff_rec(ba, "HCenter", writebool(false));
 	write_biff_rec(ba, "VCenter", writebool(false));
 	/* ... */
+	if(b8) write_ws_cols_biff8(ba, ws["!cols"], ws);
+	/* ... */
 	write_biff_rec(ba, 0x200, write_Dimensions(range, opts));
 	/* ... */