diff --git a/bits/32_odmanrdf.js b/bits/32_odmanrdf.js
index 0865a68..85b2ab9 100644
--- a/bits/32_odmanrdf.js
+++ b/bits/32_odmanrdf.js
@@ -1,62 +1,61 @@
-/* Open Document Format for Office Applications (OpenDocument) Version 1.2 */
-/* Part 3 Section 4 Manifest File */
 var CT_ODS = "application/vnd.oasis.opendocument.spreadsheet";
 function parse_manifest(d, opts) {
-	var str = xlml_normalize(d);
-	var Rn;
-	var FEtag;
-	while((Rn = xlmlregex.exec(str))) switch(Rn[3]) {
-		case 'manifest': break; // 4.2 <manifest:manifest>
-		case 'file-entry': // 4.3 <manifest:file-entry>
-			FEtag = parsexmltag(Rn[0], false);
-			if(FEtag.path == '/' && FEtag.type !== CT_ODS) throw new Error("This OpenDocument is not a spreadsheet");
-			break;
-		case 'encryption-data': // 4.4 <manifest:encryption-data>
-		case 'algorithm': // 4.5 <manifest:algorithm>
-		case 'start-key-generation': // 4.6 <manifest:start-key-generation>
-		case 'key-derivation': // 4.7 <manifest:key-derivation>
-			throw new Error("Unsupported ODS Encryption");
-		default: if(opts && opts.WTF) throw Rn;
-	}
+  var str = xlml_normalize(d);
+  var Rn;
+  var FEtag;
+  while (Rn = xlmlregex.exec(str))
+    switch (Rn[3]) {
+      case "manifest":
+        break;
+      case "file-entry":
+        FEtag = parsexmltag(Rn[0], false);
+        if (FEtag.path == "/" && FEtag.type !== CT_ODS)
+          throw new Error("This OpenDocument is not a spreadsheet");
+        break;
+      case "encryption-data":
+      case "algorithm":
+      case "start-key-generation":
+      case "key-derivation":
+        throw new Error("Unsupported ODS Encryption");
+      default:
+        if (opts && opts.WTF)
+          throw Rn;
+    }
 }
-
-function write_manifest(manifest/*:Array<Array<string> >*/)/*:string*/ {
-	var o = [XML_HEADER];
-	o.push('<manifest:manifest xmlns:manifest="urn:oasis:names:tc:opendocument:xmlns:manifest:1.0" manifest:version="1.2">\n');
-	o.push('  <manifest:file-entry manifest:full-path="/" manifest:version="1.2" manifest:media-type="application/vnd.oasis.opendocument.spreadsheet"/>\n');
-	for(var i = 0; i < manifest.length; ++i) o.push('  <manifest:file-entry manifest:full-path="' + manifest[i][0] + '" manifest:media-type="' + manifest[i][1] + '"/>\n');
-	o.push('</manifest:manifest>');
-	return o.join("");
+function write_manifest(manifest) {
+  var o = [XML_HEADER];
+  o.push('<manifest:manifest xmlns:manifest="urn:oasis:names:tc:opendocument:xmlns:manifest:1.0" manifest:version="1.2">\n');
+  o.push('  <manifest:file-entry manifest:full-path="/" manifest:version="1.2" manifest:media-type="application/vnd.oasis.opendocument.spreadsheet"/>\n');
+  for (var i = 0; i < manifest.length; ++i)
+    o.push('  <manifest:file-entry manifest:full-path="' + manifest[i][0] + '" manifest:media-type="' + manifest[i][1] + '"/>\n');
+  o.push("</manifest:manifest>");
+  return o.join("");
 }
-
-/* Part 3 Section 6 Metadata Manifest File */
-function write_rdf_type(file/*:string*/, res/*:string*/, tag/*:?string*/) {
-	return [
-		'  <rdf:Description rdf:about="' + file + '">\n',
-		'    <rdf:type rdf:resource="http://docs.oasis-open.org/ns/office/1.2/meta/' + (tag || "odf") + '#' + res + '"/>\n',
-		'  </rdf:Description>\n'
-	].join("");
+function write_rdf_type(file, res, tag) {
+  return [
+    '  <rdf:Description rdf:about="' + file + '">\n',
+    '    <rdf:type rdf:resource="http://docs.oasis-open.org/ns/office/1.2/meta/' + (tag || "odf") + "#" + res + '"/>\n',
+    "  </rdf:Description>\n"
+  ].join("");
 }
-function write_rdf_has(base/*:string*/, file/*:string*/) {
-	return [
-		'  <rdf:Description rdf:about="' + base + '">\n',
-		'    <ns0:hasPart xmlns:ns0="http://docs.oasis-open.org/ns/office/1.2/meta/pkg#" rdf:resource="' + file + '"/>\n',
-		'  </rdf:Description>\n'
-	].join("");
+function write_rdf_has(base, file) {
+  return [
+    '  <rdf:Description rdf:about="' + base + '">\n',
+    '    <ns0:hasPart xmlns:ns0="http://docs.oasis-open.org/ns/office/1.2/meta/pkg#" rdf:resource="' + file + '"/>\n',
+    "  </rdf:Description>\n"
+  ].join("");
 }
 function write_rdf(rdf) {
-	var o = [XML_HEADER];
-	o.push('<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">\n');
-	for(var i = 0; i != rdf.length; ++i) {
-		o.push(write_rdf_type(rdf[i][0], rdf[i][1]));
-		o.push(write_rdf_has("",rdf[i][0]));
-	}
-	o.push(write_rdf_type("","Document", "pkg"));
-	o.push('</rdf:RDF>');
-	return o.join("");
+  var o = [XML_HEADER];
+  o.push('<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">\n');
+  for (var i = 0; i != rdf.length; ++i) {
+    o.push(write_rdf_type(rdf[i][0], rdf[i][1]));
+    o.push(write_rdf_has("", rdf[i][0]));
+  }
+  o.push(write_rdf_type("", "Document", "pkg"));
+  o.push("</rdf:RDF>");
+  return o.join("");
 }
-/* TODO: pull properties */
-function write_meta_ods(/*:: wb: Workbook, opts: any*/)/*:string*/ {
-	return '<office:document-meta xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xlink="http://www.w3.org/1999/xlink" office:version="1.2"><office:meta><meta:generator>Sheet' + 'JS ' + XLSX.version + '</meta:generator></office:meta></office:document-meta>';
+function write_meta_ods(wb, opts) {
+  return '<office:document-meta xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xlink="http://www.w3.org/1999/xlink" office:version="1.2"><office:meta><meta:generator>SheetJS ' + XLSX.version + "</meta:generator></office:meta></office:document-meta>";
 }
-
diff --git a/bits/79_html.js b/bits/79_html.js
index 4406332..4f66387 100644
--- a/bits/79_html.js
+++ b/bits/79_html.js
@@ -83,7 +83,7 @@ function make_html_row(ws/*:Worksheet*/, r/*:Range*/, R/*:number*/, o/*:Sheet2HT
 			sp["data-t"] = cell && cell.t || 'z';
 			if(cell.v != null) sp["data-v"] = cell.v;
 			if(cell.z != null) sp["data-z"] = cell.z;
-			if(cell.l && (cell.l.Target || "#").charAt(0) != "#") w = '<a href="' + cell.l.Target +'">' + w + '</a>';
+			if(cell.l && (cell.l.Target || "#").charAt(0) != "#") w = '<a href="' + escapehtml(cell.l.Target) +'">' + w + '</a>';
 		}
 		sp.id = (o.id || "sjs") + "-" + coord;
 		oo.push(writextag('td', w, sp));
diff --git a/modules/32_odmanrdf.js b/modules/32_odmanrdf.js
new file mode 100644
index 0000000..85b2ab9
--- /dev/null
+++ b/modules/32_odmanrdf.js
@@ -0,0 +1,61 @@
+var CT_ODS = "application/vnd.oasis.opendocument.spreadsheet";
+function parse_manifest(d, opts) {
+  var str = xlml_normalize(d);
+  var Rn;
+  var FEtag;
+  while (Rn = xlmlregex.exec(str))
+    switch (Rn[3]) {
+      case "manifest":
+        break;
+      case "file-entry":
+        FEtag = parsexmltag(Rn[0], false);
+        if (FEtag.path == "/" && FEtag.type !== CT_ODS)
+          throw new Error("This OpenDocument is not a spreadsheet");
+        break;
+      case "encryption-data":
+      case "algorithm":
+      case "start-key-generation":
+      case "key-derivation":
+        throw new Error("Unsupported ODS Encryption");
+      default:
+        if (opts && opts.WTF)
+          throw Rn;
+    }
+}
+function write_manifest(manifest) {
+  var o = [XML_HEADER];
+  o.push('<manifest:manifest xmlns:manifest="urn:oasis:names:tc:opendocument:xmlns:manifest:1.0" manifest:version="1.2">\n');
+  o.push('  <manifest:file-entry manifest:full-path="/" manifest:version="1.2" manifest:media-type="application/vnd.oasis.opendocument.spreadsheet"/>\n');
+  for (var i = 0; i < manifest.length; ++i)
+    o.push('  <manifest:file-entry manifest:full-path="' + manifest[i][0] + '" manifest:media-type="' + manifest[i][1] + '"/>\n');
+  o.push("</manifest:manifest>");
+  return o.join("");
+}
+function write_rdf_type(file, res, tag) {
+  return [
+    '  <rdf:Description rdf:about="' + file + '">\n',
+    '    <rdf:type rdf:resource="http://docs.oasis-open.org/ns/office/1.2/meta/' + (tag || "odf") + "#" + res + '"/>\n',
+    "  </rdf:Description>\n"
+  ].join("");
+}
+function write_rdf_has(base, file) {
+  return [
+    '  <rdf:Description rdf:about="' + base + '">\n',
+    '    <ns0:hasPart xmlns:ns0="http://docs.oasis-open.org/ns/office/1.2/meta/pkg#" rdf:resource="' + file + '"/>\n',
+    "  </rdf:Description>\n"
+  ].join("");
+}
+function write_rdf(rdf) {
+  var o = [XML_HEADER];
+  o.push('<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">\n');
+  for (var i = 0; i != rdf.length; ++i) {
+    o.push(write_rdf_type(rdf[i][0], rdf[i][1]));
+    o.push(write_rdf_has("", rdf[i][0]));
+  }
+  o.push(write_rdf_type("", "Document", "pkg"));
+  o.push("</rdf:RDF>");
+  return o.join("");
+}
+function write_meta_ods(wb, opts) {
+  return '<office:document-meta xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xlink="http://www.w3.org/1999/xlink" office:version="1.2"><office:meta><meta:generator>SheetJS ' + XLSX.version + "</meta:generator></office:meta></office:document-meta>";
+}
diff --git a/modules/32_odmanrdf.ts b/modules/32_odmanrdf.ts
new file mode 100644
index 0000000..83552be
--- /dev/null
+++ b/modules/32_odmanrdf.ts
@@ -0,0 +1,73 @@
+/* Open Document Format for Office Applications (OpenDocument) Version 1.2 */
+
+import { WorkBook, ParsingOptions } from '../';
+import * as _XLSX from '../';
+declare var XLSX: typeof _XLSX;
+
+type RawData = any;
+declare var XML_HEADER: string;
+declare var xlmlregex: RegExp;
+declare function parsexmltag(tag: string, skip_root?: boolean, skip_LC?: boolean): any;
+declare function xlml_normalize(d: RawData): string;
+type RDF = [string, string][];
+
+/* Part 3 Section 4 Manifest File */
+var CT_ODS = "application/vnd.oasis.opendocument.spreadsheet";
+function parse_manifest(d: RawData, opts?: ParsingOptions) {
+	var str = xlml_normalize(d);
+	var Rn: RegExpExecArray | null;
+	var FEtag;
+	while((Rn = xlmlregex.exec(str))) switch(Rn[3]) {
+		case 'manifest': break; // 4.2 <manifest:manifest>
+		case 'file-entry': // 4.3 <manifest:file-entry>
+			FEtag = parsexmltag(Rn[0], false);
+			if(FEtag.path == '/' && FEtag.type !== CT_ODS) throw new Error("This OpenDocument is not a spreadsheet");
+			break;
+		case 'encryption-data': // 4.4 <manifest:encryption-data>
+		case 'algorithm': // 4.5 <manifest:algorithm>
+		case 'start-key-generation': // 4.6 <manifest:start-key-generation>
+		case 'key-derivation': // 4.7 <manifest:key-derivation>
+			throw new Error("Unsupported ODS Encryption");
+		default: if(opts && opts.WTF) throw Rn;
+	}
+}
+
+function write_manifest(manifest: RDF): string {
+	var o = [XML_HEADER];
+	o.push('<manifest:manifest xmlns:manifest="urn:oasis:names:tc:opendocument:xmlns:manifest:1.0" manifest:version="1.2">\n');
+	o.push('  <manifest:file-entry manifest:full-path="/" manifest:version="1.2" manifest:media-type="application/vnd.oasis.opendocument.spreadsheet"/>\n');
+	for(var i = 0; i < manifest.length; ++i) o.push('  <manifest:file-entry manifest:full-path="' + manifest[i][0] + '" manifest:media-type="' + manifest[i][1] + '"/>\n');
+	o.push('</manifest:manifest>');
+	return o.join("");
+}
+
+/* Part 3 Section 6 Metadata Manifest File */
+function write_rdf_type(file: string, res: string, tag?: string): string {
+	return [
+		'  <rdf:Description rdf:about="' + file + '">\n',
+		'    <rdf:type rdf:resource="http://docs.oasis-open.org/ns/office/1.2/meta/' + (tag || "odf") + '#' + res + '"/>\n',
+		'  </rdf:Description>\n'
+	].join("");
+}
+function write_rdf_has(base: string, file: string): string {
+	return [
+		'  <rdf:Description rdf:about="' + base + '">\n',
+		'    <ns0:hasPart xmlns:ns0="http://docs.oasis-open.org/ns/office/1.2/meta/pkg#" rdf:resource="' + file + '"/>\n',
+		'  </rdf:Description>\n'
+	].join("");
+}
+function write_rdf(rdf: RDF): string {
+	var o: string[] = [XML_HEADER];
+	o.push('<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">\n');
+	for(var i = 0; i != rdf.length; ++i) {
+		o.push(write_rdf_type(rdf[i][0], rdf[i][1]));
+		o.push(write_rdf_has("",rdf[i][0]));
+	}
+	o.push(write_rdf_type("","Document", "pkg"));
+	o.push('</rdf:RDF>');
+	return o.join("");
+}
+/* TODO: pull properties */
+function write_meta_ods(wb?: WorkBook, opts?: any): string {
+	return '<office:document-meta xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xlink="http://www.w3.org/1999/xlink" office:version="1.2"><office:meta><meta:generator>Sheet' + 'JS ' + XLSX.version + '</meta:generator></office:meta></office:document-meta>';
+}
\ No newline at end of file
diff --git a/modules/45_rtf.ts b/modules/45_rtf.ts
index 71ee5c7..449a238 100644
--- a/modules/45_rtf.ts
+++ b/modules/45_rtf.ts
@@ -1,5 +1,6 @@
-import { WorkBook, WorkSheet, Range, CellObject, DenseSheet, SparseSheet } from '../';
+import { WorkBook, WorkSheet, Range, CellObject, DenseSheet, SparseSheet, ParsingOptions, WritingOptions } from '../';
 import type { utils } from "../";
+type RawData = any;
 
 declare var encode_cell: typeof utils.encode_cell;
 declare var encode_range: typeof utils.encode_range;
@@ -12,7 +13,7 @@ declare var has_buf: boolean;
 declare function Base64_decode(s: string): string;
 declare function fuzzynum(s: string): number;
 
-function rtf_to_sheet(d/*:RawData*/, opts)/*:Worksheet*/ {
+function rtf_to_sheet(d: RawData, opts: ParsingOptions): WorkSheet {
 	switch(opts.type) {
 		case 'base64': return rtf_to_sheet_str(Base64_decode(d), opts);
 		case 'binary': return rtf_to_sheet_str(d, opts);
@@ -23,7 +24,7 @@ function rtf_to_sheet(d/*:RawData*/, opts)/*:Worksheet*/ {
 }
 
 /* TODO: this is a stub */
-function rtf_to_sheet_str(str: string, opts)/*:Worksheet*/ {
+function rtf_to_sheet_str(str: string, opts: ParsingOptions): WorkSheet {
 	var o = opts || {};
 	// ESBuild issue 2375
 	var ws: WorkSheet = {} as WorkSheet;
@@ -71,14 +72,14 @@ function rtf_to_sheet_str(str: string, opts)/*:Worksheet*/ {
 	return ws;
 }
 
-function rtf_to_workbook(d/*:RawData*/, opts): WorkBook {
+function rtf_to_workbook(d: RawData, opts: ParsingOptions): WorkBook {
 	var wb: WorkBook = sheet_to_workbook(rtf_to_sheet(d, opts), opts);
 	wb.bookType = "rtf";
 	return wb;
 }
 
 /* TODO: this is a stub */
-function sheet_to_rtf(ws: WorkSheet, opts): string {
+function sheet_to_rtf(ws: WorkSheet, opts: WritingOptions): string {
 	var o: string[] = ["{\\rtf1\\ansi"];
 	if(!ws["!ref"]) return o[0] + "}";
 	var r = safe_decode_range(ws['!ref']), cell: CellObject;
diff --git a/modules/83_numbers.ts b/modules/83_numbers.ts
index 68b250c..d260418 100644
--- a/modules/83_numbers.ts
+++ b/modules/83_numbers.ts
@@ -214,7 +214,7 @@ function write_shallow(proto: ProtoMessage): Uint8Array {
 //<<export { parse_shallow, write_shallow };
 
 /** Map over each entry in a repeated (or single-value) field */
-function mappa<U>(data: ProtoField, cb:(Uint8Array) => U): U[] {
+function mappa<U>(data: ProtoField, cb: (u: Uint8Array) => U): U[] {
 	return data?.map(d =>  cb(d.data)) || [];
 }
 
@@ -874,9 +874,9 @@ function parse_numbers_iwa(cfb: CFB$Container, opts?: ParsingOptions ): WorkBook
 		if(!s.name.match(/\.iwa$/)) return;
 		if(s.content[0] != 0) return; // TODO: this should test if the iwa follows the framing format
 		var o: Uint8Array;
-		try { o = decompress_iwa_file(s.content as Uint8Array); } catch(e) { return console.log("?? " + s.content.length + " " + (e.message || e)); }
+		try { o = decompress_iwa_file(s.content as Uint8Array); } catch(e: any) { return console.log("?? " + s.content.length + " " + ((e as Error).message || e)); }
 		var packets: IWAArchiveInfo[];
-		try { packets = parse_iwa_file(o); } catch(e) { return console.log("## " + (e.message || e)); }
+		try { packets = parse_iwa_file(o); } catch(e: any) { return console.log("## " + ((e as Error).message || e)); }
 		packets.forEach(packet => { M[packet.id] = packet.messages; indices.push(packet.id); });
 	});
 	if(!indices.length) throw new Error("File has no messages");
diff --git a/modules/Makefile b/modules/Makefile
index ebabc3a..9f0a623 100644
--- a/modules/Makefile
+++ b/modules/Makefile
@@ -4,11 +4,15 @@ TSFILES=$(wildcard *.ts)
 ENTRIES=$(subst .ts,.js,$(TSFILES))
 CC=esbuild@0.14.14
 
-BAREJS=04_base64.js 45_rtf.js 51_xlsxmeta.js 51_xlsbmeta.js 59_vba.js 64_ftab.js 83_numbers.js
+BAREJS=04_base64.js 32_odmanrdf.js 45_rtf.js 51_xlsxmeta.js 51_xlsbmeta.js 59_vba.js 64_ftab.js 83_numbers.js
 
 .PHONY: all
 all: bits xlsx.zahl.js
 
+.PHONY: lint
+lint: $(filter-out $(wildcard *.node.ts),$(TSFILES))
+	tsc --strict --noEmit $^
+
 .PHONY: bits
 bits: $(ENTRIES)
 
diff --git a/modules/reframe.sh b/modules/reframe.sh
index aad3caf..02a1328 100755
--- a/modules/reframe.sh
+++ b/modules/reframe.sh
@@ -2,12 +2,13 @@
 set -eo pipefail
 INF=${1:-test.numbers}
 OUTF=${2:-reframed.numbers}
+chmod a+w "$OUTF"
 cp "$INF" "$OUTF"
 chmod a-w "$OUTF"
 sleep 0.1
 # open "$OUTF"
 unzip -l "$OUTF"
-base64 "$OUTF" | tr -d '\n' > xlsx.zahl.js
+(base64 "$OUTF" || base64 -i "$OUTF") | tr -d '\n' > xlsx.zahl.js
 sed -i.bak 's/^/var XLSX_ZAHL_PAYLOAD = "/g;s/$/";\n/g' xlsx.zahl.js
 cp xlsx.zahl.js xlsx.zahl.mjs
 cat >> xlsx.zahl.js <<EOF