diff --git a/AsbCloudWebApi/Controllers/ProcessMapController.cs b/AsbCloudWebApi/Controllers/ProcessMapController.cs
index 95f41405..ffa88938 100644
--- a/AsbCloudWebApi/Controllers/ProcessMapController.cs
+++ b/AsbCloudWebApi/Controllers/ProcessMapController.cs
@@ -204,11 +204,18 @@ namespace AsbCloudWebApi.Controllers
             
             using Stream stream = file.OpenReadStream();
 
-            await processMapPlanImportService.ImportAsync(idWell,
-                idUser.Value,
-                (options & 1) > 0,
-                stream,
-                cancellationToken);
+            try
+            {
+                await processMapPlanImportService.ImportAsync(idWell,
+                    idUser.Value,
+                    (options & 1) > 0,
+                    stream,
+                    cancellationToken);
+            }
+            catch (FileFormatException ex)
+            {
+                return BadRequest(ex.Message);
+            }
 
             return Ok();
         }