diff --git a/backend/src/modules/tenders/tenders.service.ts b/backend/src/modules/tenders/tenders.service.ts
index 1c0ee4f..91fa62e 100644
--- a/backend/src/modules/tenders/tenders.service.ts
+++ b/backend/src/modules/tenders/tenders.service.ts
@@ -209,11 +209,25 @@ class TendersService {
     return cleanedNotes ? `${cleanedNotes}\n${metaBlock}` : metaBlock;
   }
 
-  private mapTenderExtraFields<T extends { notes?: string | null; bondValue?: any }>(tender: T) {
+   private getComputedTenderStatus<T extends { status?: string | null; closingDate?: Date | string | null }>(tender: T) {
+    if (tender.status === 'CONVERTED_TO_DEAL' || tender.status === 'CANCELLED') {
+      return tender.status;
+    }
+
+    if (tender.closingDate && new Date(tender.closingDate) < new Date()) {
+      return 'EXPIRED';
+    }
+
+    return tender.status || 'ACTIVE';
+  }
+
+  private mapTenderExtraFields<T extends { notes?: string | null; bondValue?: any; status?: string | null; closingDate?: Date | string | null }>(tender: T) {
     const { cleanNotes, meta } = this.extractTenderExtraMeta(tender.notes);
 
     return {
       ...tender,
+      status: this.getComputedTenderStatus(tender),
+      originalStatus: tender.status,
       notes: cleanNotes || null,
       initialBondValue: meta.initialBondValue ?? Number(tender.bondValue ?? 0),
       finalBondValue: meta.finalBondValue ?? null,
@@ -346,7 +360,9 @@ class TendersService {
         { issuingBodyName: { contains: filters.search, mode: 'insensitive' } },
       ];
     }
-    if (filters.status) where.status = filters.status;
+    if (filters.status && filters.status !== 'EXPIRED') {
+      where.status = filters.status;
+    }
     if (filters.source) where.source = filters.source;
     if (filters.announcementType) where.announcementType = filters.announcementType;
 
@@ -362,9 +378,15 @@ class TendersService {
       },
       orderBy: { createdAt: 'desc' },
     });
-        return {
-      tenders: tenders.map((t) => this.mapTenderExtraFields(t)),
-      total,
+    const mappedTenders = tenders.map((t) => this.mapTenderExtraFields(t));
+    const filteredTenders =
+      filters.status === 'EXPIRED'
+        ? mappedTenders.filter((t: any) => t.status === 'EXPIRED')
+        : mappedTenders;
+
+    return {
+      tenders: filteredTenders,
+      total: filters.status === 'EXPIRED' ? filteredTenders.length : total,
       page,
       pageSize,
     };
@@ -679,7 +701,17 @@ class TendersService {
     return deal;
   }
 
-  async uploadTenderAttachment(
+    private decodeUploadedFileName(fileName: string) {
+    if (!fileName) return 'file';
+
+    try {
+      return Buffer.from(fileName, 'latin1').toString('utf8');
+    } catch {
+      return fileName;
+    }
+  }
+
+    async uploadTenderAttachment(
     tenderId: string,
     file: { path: string; originalname: string; mimetype: string; size: number },
     userId: string,
@@ -687,14 +719,17 @@ class TendersService {
   ) {
     const tender = await prisma.tender.findUnique({ where: { id: tenderId } });
     if (!tender) throw new AppError(404, 'Tender not found');
+
     const fileName = path.basename(file.path);
+    const originalName = this.decodeUploadedFileName(file.originalname);
+
     const attachment = await prisma.attachment.create({
       data: {
         entityType: 'TENDER',
         entityId: tenderId,
         tenderId,
         fileName,
-        originalName: file.originalname,
+        originalName,
         mimeType: file.mimetype,
         size: file.size,
         path: file.path,
@@ -702,6 +737,7 @@ class TendersService {
         uploadedBy: userId,
       },
     });
+
     await AuditLogger.log({
       entityType: 'TENDER',
       entityId: tenderId,
@@ -709,6 +745,7 @@ class TendersService {
       userId,
       changes: { attachmentUploaded: attachment.id },
     });
+
     return attachment;
   }
 
@@ -722,8 +759,12 @@ class TendersService {
       where: { id: directiveId },
       select: { id: true, tenderId: true },
     });
+
     if (!directive) throw new AppError(404, 'Directive not found');
+
     const fileName = path.basename(file.path);
+    const originalName = this.decodeUploadedFileName(file.originalname);
+
     const attachment = await prisma.attachment.create({
       data: {
         entityType: 'TENDER_DIRECTIVE',
@@ -731,7 +772,7 @@ class TendersService {
         tenderDirectiveId: directiveId,
         tenderId: directive.tenderId,
         fileName,
-        originalName: file.originalname,
+        originalName,
         mimeType: file.mimetype,
         size: file.size,
         path: file.path,
@@ -739,6 +780,7 @@ class TendersService {
         uploadedBy: userId,
       },
     });
+
     await AuditLogger.log({
       entityType: 'TENDER_DIRECTIVE',
       entityId: directiveId,
@@ -746,9 +788,9 @@ class TendersService {
       userId,
       changes: { attachmentUploaded: attachment.id },
     });
+
     return attachment;
   }
-
     async getAttachmentFile(attachmentId: string): Promise<string> {
     const attachment = await prisma.attachment.findUnique({
       where: { id: attachmentId },
@@ -766,12 +808,10 @@ class TendersService {
 
     if (!attachment) throw new AppError(404, 'File not found')
 
-    // حذف من الديسك
     if (attachment.path && fs.existsSync(attachment.path)) {
       fs.unlinkSync(attachment.path)
     }
 
-    // حذف من DB
     await prisma.attachment.delete({
       where: { id: attachmentId },
     })
diff --git a/frontend/src/app/tenders/[id]/page.tsx b/frontend/src/app/tenders/[id]/page.tsx
index d3f53c2..517350c 100644
--- a/frontend/src/app/tenders/[id]/page.tsx
+++ b/frontend/src/app/tenders/[id]/page.tsx
@@ -35,6 +35,24 @@ const DIRECTIVE_TYPE_LABELS: Record<string, string> = {
   PREPARE_TO_BID: 'Prepare to bid',
 }
 
+const getDisplayFileName = (attachment: any) => {
+  const name = String(attachment.originalName || attachment.fileName || 'file')
+
+  if (!/[ÃÄÅØÙ]/.test(name)) {
+    return name
+  }
+
+  try {
+    const bytes = new Uint8Array(
+      Array.from(name, (char: string) => char.charCodeAt(0) & 0xff)
+    )
+
+    return new TextDecoder('utf-8').decode(bytes)
+  } catch {
+    return name
+  }
+}
+
 function TenderDetailContent() {
   const searchParams = useSearchParams()
   const params = useParams()
@@ -45,8 +63,8 @@ function TenderDetailContent() {
   const [tender, setTender] = useState<Tender | null>(null)
   const [history, setHistory] = useState<any[]>([])
   const [loading, setLoading] = useState(true)
-  type TenderTab = 'details' | 'directives' | 'attachments' | 'logs' | 'info' |'history'
-  const [activeTab, setActiveTab] = useState<TenderTab>('details')
+  type TenderTab = 'info' | 'directives' | 'attachments' | 'history'
+  const [activeTab, setActiveTab] = useState<TenderTab>('info')
   const openTab = (tab: TenderTab) => {
   setActiveTab(tab)
   router.replace(`/tenders/${params.id}?tab=${tab}`)
@@ -94,9 +112,7 @@ function TenderDetailContent() {
   }
   useEffect(() => {
     const tabParam = searchParams.get('tab') as TenderTab | null
-
-    const allowedTabs: TenderTab[] = ['details', 'directives', 'attachments', 'logs']
-
+    const allowedTabs: TenderTab[] = ['info', 'directives', 'attachments', 'history']
     if (tabParam && allowedTabs.includes(tabParam)) {
       setActiveTab(tabParam)
     }
@@ -284,7 +300,7 @@ function TenderDetailContent() {
             {tabs.map((tab) => (
               <button
                 key={tab.id}
-                onClick={() => setActiveTab(tab.id as any)}
+                onClick={() => openTab(tab.id as TenderTab)}
                 className={`flex items-center gap-2 px-4 py-2 rounded-lg text-sm font-medium ${
                   activeTab === tab.id
                     ? 'bg-indigo-100 text-indigo-800'
@@ -510,7 +526,7 @@ function TenderDetailContent() {
                           className="text-sm text-indigo-600 hover:underline flex items-center gap-1"
                         >
                           <ExternalLink className="h-4 w-4" />
-                          {a.originalName || a.fileName}
+                          {getDisplayFileName(a)}          
                         </a>
 
                         <button
diff --git a/frontend/src/app/tenders/page.tsx b/frontend/src/app/tenders/page.tsx
index 1a268ac..6728e08 100644
--- a/frontend/src/app/tenders/page.tsx
+++ b/frontend/src/app/tenders/page.tsx
@@ -662,6 +662,7 @@ function TendersContent() {
             >
               <option value="all">{t('common.all') || 'All status'}</option>
               <option value="ACTIVE">Active</option>
+              <option value="EXPIRED">Expired</option>
               <option value="CONVERTED_TO_DEAL">Converted</option>
               <option value="CANCELLED">Cancelled</option>
             </select>
@@ -721,12 +722,14 @@ function TendersContent() {
                           className={`inline-flex px-2.5 py-1 text-xs font-medium rounded-full ${
                             tender.status === 'ACTIVE'
                               ? 'bg-green-100 text-green-800'
-                              : tender.status === 'CONVERTED_TO_DEAL'
-                                ? 'bg-blue-100 text-blue-800'
-                                : 'bg-gray-100 text-gray-800'
+                              : tender.status === 'EXPIRED'
+                                ? 'bg-red-100 text-red-800'
+                                : tender.status === 'CONVERTED_TO_DEAL'
+                                  ? 'bg-blue-100 text-blue-800'
+                                  : 'bg-gray-100 text-gray-800'
                           }`}
                         >
-                          {tender.status}
+                          {tender.status === 'EXPIRED' ? 'EXPIRED' : tender.status}
                         </span>
                       </td>
                       <td className="px-6 py-4 text-right align-middle">