diff --git a/app/app.py b/app/app.py
index 1f17932..15f6a22 100644
--- a/app/app.py
+++ b/app/app.py
@@ -1182,9 +1182,130 @@ def subscribe():
 # ===========
 #    IO
 
+
+from io.document import convert_document
+
+@app.route("/api/import/d/<cid>", methods=["POST"])
+@login_required
+def import_document(cid):
+    file = request.files.get("file")
+    if not file:
+        return jsonify({"erro": "Nenhum arquivo enviado."}), 400
+
+    ext = file.filename.lower().split(".")[-1]
+    if ext not in ["doc", "docx", "odt", "txt", "md", "html", "htm"]:
+        return jsonify({"erro": "Formato não suportado."}), 400
+
+    email = session["db_user"]["email"] if app.config["AUTH_MODE"] == "db" else session["user"]["email"]
+
+    temp_path = f"/data/{uuid.uuid4()}.{ext}"
+    file.save(temp_path)
+
+    text = convert_document(temp_path)
+
+    # Convert to TSV (single column)
+    tsv = "\x09".join([normalize_newlines(text)])
+    filename = f"{file.filename}.tsv"
+
+    file_id = str(uuid.uuid4())
+    path = f"/data/{file_id}_{filename}"
+
+    with open(path, "w", encoding="utf-8") as f:
+        f.write(tsv)
+
+    db = SessionLocal()
+    db.add(File(
+        id=file_id,
+        user_email=email,
+        path=path,
+        original_name=filename
+    ))
+
+    msg = Message(
+        id=str(uuid.uuid4()),
+        conversation_id=cid,
+        role="user",
+        content=f"Arquivo importado: {filename}\n```\n{tsv}\n```"
+    )
+    db.add(msg)
+
+    db.commit()
+    db.close()
+
+    return jsonify({"status": "ok", "filename": filename})
+
+@app.route("/api/export/txt/<cid>/<filename>")
+@login_required
+def export_txt(cid, filename):
+    email = session["db_user"]["email"] if app.config["AUTH_MODE"] == "db" else session["user"]["email"]
+
+    db = SessionLocal()
+    msgs = (
+        db.query(Message)
+        .join(Conversation)
+        .filter(Conversation.id == cid, Conversation.user_email == email)
+        .order_by(Message.created_at)
+        .all()
+    )
+    db.close()
+
+    text = "\n".join([m.content for m in msgs])
+    out = f"/data/{uuid.uuid4()}_{filename}"
+
+    with open(out, "w", encoding="utf-8") as f:
+        f.write(text)
+
+    return send_file(out, as_attachment=True, download_name=filename)
+
+@app.route("/api/export/md/<cid>/<filename>")
+@login_required
+def export_md(cid, filename):
+    # similar to TXT, but wrap content in Markdown
+    ...
+
+@app.route("/api/export/html/<cid>/<filename>")
+@login_required
+def export_html(cid, filename):
+    # wrap messages in <p> tags
+    ...
+
+from docx import Document
+
+@app.route("/api/export/docx/<cid>/<filename>")
+@login_required
+def export_docx(cid, filename):
+    email = session["db_user"]["email"] if app.config["AUTH_MODE"] == "db" else session["user"]["email"]
+
+    db = SessionLocal()
+    msgs = (
+        db.query(Message)
+        .join(Conversation)
+        .filter(Conversation.id == cid, Conversation.user_email == email)
+        .order_by(Message.created_at)
+        .all()
+    )
+    db.close()
+
+    doc = Document()
+    for m in msgs:
+        doc.add_paragraph(m.content)
+
+    out = f"/data/{uuid.uuid4()}_{filename}"
+    doc.save(out)
+
+    return send_file(out, as_attachment=True, download_name=filename)
+
+@app.route("/api/export/odt/<cid>/<filename>")
+@login_required
+def export_odt(cid, filename):
+    # similar approach using odfpy
+    ...
+
+
+
 from io.spreadsheet import convert_excel, convert_excel_all_sheets
 
-@app.route("/api/io/s/<cid>", methods=["POST"])
+@app.route("/api/import/s/<cid>", methods=["POST"])
 @login_required
 def import_excel(cid):
     file = request.files.get("file")
@@ -1220,7 +1341,7 @@ def import_excel(cid):
 
 from io.presentation import convert_presentation
 
-@app.route("/api/io/p/<cid>", methods=["POST"])
+@app.route("/api/import/p/<cid>", methods=["POST"])
 @login_required
 def import_presentation(cid):
     file = request.files.get("file")
@@ -1272,7 +1393,7 @@ def import_presentation(cid):
 
 from pptx import Presentation
 
-@app.route("/api/io/p/<cid>/<filename>")
+@app.route("/api/export/pptx/<cid>/<filename>")
 @login_required
 def export_pptx(cid, filename):
     email = session["user"]["email"] if app.config["AUTH_MODE"] == "oauth" else session["db_user"]["email"]