If you want to open file as page sheet

[alitokmakcii]

you can apply this patch to show file as page sheet

diff --git a/node_modules/react-native-file-viewer/ios/RNFileViewerManager.m b/node_modules/react-native-file-viewer/ios/RNFileViewerManager.m
index 8149cac..9bfe211 100644
--- a/node_modules/react-native-file-viewer/ios/RNFileViewerManager.m
+++ b/node_modules/react-native-file-viewer/ios/RNFileViewerManager.m
@@ -1,7 +1,7 @@
-
 #import "RNFileViewerManager.h"
 #import <QuickLook/QuickLook.h>
 #import <React/RCTConvert.h>
+#import <objc/runtime.h>
 
 #define OPEN_EVENT @"RNFileViewerDidOpen"
 #define DISMISS_EVENT @"RNFileViewerDidDismiss"
@@ -102,6 +102,15 @@
     [self sendEventWithName:DISMISS_EVENT body: @{@"id": controller.invocation}];
 }
 
+- (void)dismissPreview:(UIBarButtonItem *)sender {
+    NSNumber *invocationId = objc_getAssociatedObject(sender, "invocationId");
+    
+    UIViewController *topVC = [RNFileViewer topViewController];
+    [topVC dismissViewControllerAnimated:YES completion:^{
+        [self sendEventWithName:DISMISS_EVENT body: @{@"id": invocationId}];
+    }];
+}
+
 RCT_EXPORT_MODULE()
 
 - (NSArray<NSString *> *)supportedEvents {
@@ -114,13 +123,35 @@ RCT_EXPORT_METHOD(open:(NSString *)path invocation:(nonnull NSNumber *)invocatio
     NSString *displayName = [RCTConvert NSString:options[@"displayName"]];
     File *file = [[File alloc] initWithPath:path title:displayName];
 
-    QLPreviewController *controller = [[CustomQLViewController alloc] initWithFile:file identifier:invocationId];
+    CustomQLViewController *controller = [[CustomQLViewController alloc] initWithFile:file identifier:invocationId];
     controller.delegate = self;
 
+    // Wrap QLPreviewController in a UINavigationController for proper sheet animation
+    UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:controller];
+    
+    // Add a close button to the navigation bar
+    UIBarButtonItem *closeButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone 
+                                                                                 target:self 
+                                                                                 action:@selector(dismissPreview:)];
+    controller.navigationItem.rightBarButtonItem = closeButton;
+    
+    // Set the modal presentation for the navigation controller
+    navController.modalPresentationStyle = UIModalPresentationPageSheet;
+    
+    // Disable gesture-based dismissal - only allow Done button dismissal
+    if (@available(iOS 13.0, *)) {
+        navController.modalInPresentation = YES;
+    }
+    
+    // Store reference for dismissal
+    objc_setAssociatedObject(closeButton, "invocationId", invocationId, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
+
     typeof(self) __weak weakSelf = self;
-    [[RNFileViewer topViewController] presentViewController:controller animated:YES completion:^{
-        [weakSelf sendEventWithName:OPEN_EVENT body: @{@"id": invocationId}];
-    }];
+    dispatch_async(dispatch_get_main_queue(), ^{
+        [[RNFileViewer topViewController] presentViewController:navController animated:YES completion:^{
+            [weakSelf sendEventWithName:OPEN_EVENT body: @{@"id": invocationId}];
+        }];
+    });
 }
 
 @end
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