diff --git a/AsbCloudWebApi/Extensions.cs b/AsbCloudWebApi/Extensions.cs
new file mode 100644
index 00000000..489d6149
--- /dev/null
+++ b/AsbCloudWebApi/Extensions.cs
@@ -0,0 +1,125 @@
+using AsbCloudApp.Data.User;
+using AsbCloudWebApi.Converters;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.IO;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Security.Claims;
+using AsbCloudApp.Data;
+using AsbCloudApp.Requests.ParserOptions;
+using AsbCloudWebApi.Controllers.Interfaces;
+using Microsoft.AspNetCore.Http;
+
+namespace Microsoft.AspNetCore.Mvc;
+
+public static class Extensions
+{
+    public static int? GetCompanyId(this ClaimsPrincipal user)
+    {
+        var claimIdCompany = user.FindFirst(nameof(UserDto.IdCompany));
+        if (claimIdCompany is null)
+            return null;
+
+        return int.TryParse(claimIdCompany.Value, out int uid)
+            ? uid
+            : null;
+    }
+
+    public static int? GetUserId(this ClaimsPrincipal user)
+    {
+        var userId = user.FindFirst(nameof(UserDto.Id));
+        if (userId is null)
+            return null;
+
+        return int.TryParse(userId.Value, out int uid)
+            ? uid
+            : null;
+    }
+
+    /// <summary>
+    /// <para>
+    /// Returns BadRequest with ValidationProblemDetails as body
+    /// </para>
+    /// <para>
+    /// Используйте этот метод только если валидацию нельзя сделать через 
+    /// атрибуты валидации или IValidatableObject модели.
+    /// </para>
+    /// </summary>
+    /// <param name="controller"></param>
+    /// <param name="paramName"></param>
+    /// <param name="error"></param>
+    /// <returns></returns>
+    public static BadRequestObjectResult ValidationBadRequest(this ControllerBase controller, string paramName, string error)
+    {
+        return MakeBadRequestObjectResult(paramName, error);
+    }
+
+    private static BadRequestObjectResult MakeBadRequestObjectResult(string paramName, string error)
+    {
+        var errors = new Dictionary<string, string[]> {
+            { paramName, new[]{ error } }
+        };
+        var problem = new ValidationProblemDetails(errors);
+        var badRequestObject = new BadRequestObjectResult(problem);
+        return badRequestObject;
+    }
+
+    /// <summary>
+    /// <para>
+    /// Returns BadRequest with ValidationProblemDetails as body
+    /// </para>
+    /// <para>
+    /// Используйте этот метод только если валидацию нельзя сделать через 
+    /// атрибуты валидации или IValidatableObject модели.
+    /// </para>
+    /// </summary>
+    /// <param name="controller"></param>
+    /// <param name="validationResults"></param>
+    /// <returns></returns>
+    public static BadRequestObjectResult ValidationBadRequest(this ControllerBase controller, IEnumerable<ValidationResult> validationResults)
+    {
+        var errors = validationResults
+            .SelectMany(e => e.MemberNames.Select(name => new { name, e.ErrorMessage }))
+            .GroupBy(e => e.name)
+            .ToDictionary(e => e.Key, e => e.Select(el => el.ErrorMessage ?? string.Empty).ToArray());
+
+        var problem = new ValidationProblemDetails(errors);
+        return controller.BadRequest(problem);
+    }
+
+    public static MvcOptions UseDateOnlyTimeOnlyStringConverters(this MvcOptions options)
+    {
+        TypeDescriptor.AddAttributes(typeof(DateOnly), new TypeConverterAttribute(typeof(DateOnlyTypeConverter)));
+        return options;
+    }
+    
+    /// <summary>
+    /// Вызов парсера со стандартной валидацией входного файла
+    /// </summary>
+    /// <typeparam name="TDto"></typeparam>
+    /// <typeparam name="TOptions"></typeparam>
+    /// <param name="controller"></param>
+    /// <param name="files"></param>
+    /// <param name="options"></param>
+    /// <returns></returns>
+    public static ActionResult<ParserResultDto<TDto>> ParseExcelFile<TDto, TOptions>(
+        this IControllerWithParser<TDto, TOptions> controller,
+        IFormFileCollection files,
+        TOptions options)
+        where TDto : class, IId
+        where TOptions : class, IParserOptionsRequest
+    {
+        if (files.Count < 1)
+            return MakeBadRequestObjectResult(nameof(files), "Нет файла");
+
+        var file = files[0];
+        if (Path.GetExtension(file.FileName).ToLower() != ".xlsx")
+            return MakeBadRequestObjectResult(nameof(files), "Требуется .xlsx файл.");
+
+        var stream = file.OpenReadStream();
+
+        return controller.Parse(stream, options);
+    }
+}
\ No newline at end of file
diff --git a/AsbCloudWebApi/Extentions.cs b/AsbCloudWebApi/Extentions.cs
deleted file mode 100644
index 5e46eef6..00000000
--- a/AsbCloudWebApi/Extentions.cs
+++ /dev/null
@@ -1,116 +0,0 @@
-using AsbCloudApp.Data.User;
-using AsbCloudWebApi.Converters;
-using System;
-using System.Collections.Generic;
-using System.ComponentModel;
-using System.IO;
-using System.ComponentModel.DataAnnotations;
-using System.Linq;
-using System.Security.Claims;
-using AsbCloudApp.Data;
-using AsbCloudApp.Exceptions;
-using AsbCloudApp.Requests.ParserOptions;
-using AsbCloudWebApi.Controllers.Interfaces;
-using Microsoft.AspNetCore.Http;
-
-namespace Microsoft.AspNetCore.Mvc
-{
-    public static class Extentions
-    {
-        public static int? GetCompanyId(this ClaimsPrincipal user)
-        {
-            var claimIdCompany = user.FindFirst(nameof(UserDto.IdCompany));
-            if (claimIdCompany is null)
-                return null;
-
-            return int.TryParse(claimIdCompany.Value, out int uid)
-                ? uid
-                : null;
-        }
-
-        public static int? GetUserId(this ClaimsPrincipal user)
-        {
-            var userId = user.FindFirst(nameof(UserDto.Id));
-            if (userId is null)
-                return null;
-
-            return int.TryParse(userId.Value, out int uid)
-                ? uid
-                : null;
-        }
-
-        /// <summary>
-        /// <para>
-        /// Returns BadRequest with ValidationProblemDetails as body
-        /// </para>
-        /// <para>
-        /// Используйте этот метод только если валидацию нельзя сделать через 
-        /// атрибуты валидации или IValidatableObject модели.
-        /// </para>
-        /// </summary>
-        /// <param name="controller"></param>
-        /// <param name="paramName"></param>
-        /// <param name="error"></param>
-        /// <returns></returns>
-        public static BadRequestObjectResult ValidationBadRequest(this ControllerBase controller, string paramName, string error)
-        {
-            var errors = new Dictionary<string, string[]> {
-                { paramName, new[]{ error } }
-            };
-            var problem = new ValidationProblemDetails(errors);
-            return controller.BadRequest(problem);
-        }
-
-        /// <summary>
-        /// <para>
-        /// Returns BadRequest with ValidationProblemDetails as body
-        /// </para>
-        /// <para>
-        /// Используйте этот метод только если валидацию нельзя сделать через 
-        /// атрибуты валидации или IValidatableObject модели.
-        /// </para>
-        /// </summary>
-        /// <param name="controller"></param>
-        /// <param name="validationResults"></param>
-        /// <returns></returns>
-        public static BadRequestObjectResult ValidationBadRequest(this ControllerBase controller, IEnumerable<ValidationResult> validationResults)
-        {
-            var errors = validationResults
-                .SelectMany(e => e.MemberNames.Select(name => new { name, e.ErrorMessage }))
-                .GroupBy(e => e.name)
-                .ToDictionary(e => e.Key, e => e.Select(el => el.ErrorMessage ?? string.Empty).ToArray());
-
-            var problem = new ValidationProblemDetails(errors);
-            return controller.BadRequest(problem);
-        }
-
-        public static MvcOptions UseDateOnlyTimeOnlyStringConverters(this MvcOptions options)
-        {
-            TypeDescriptor.AddAttributes(typeof(DateOnly), new TypeConverterAttribute(typeof(DateOnlyTypeConverter)));
-            return options;
-        }
-        
-        public static ActionResult<ParserResultDto<TDto>> ParseExcelFile<TDto, TOptions>(
-            this IControllerWithParser<TDto, TOptions> controller,
-            IFormFileCollection files,
-            TOptions options)
-            where TDto : class, IId
-            where TOptions : class, IParserOptionsRequest
-        {
-            using var file = GetExcelFile(files);
-            return controller.Parse(file, options);
-        }
-
-        private static Stream GetExcelFile(IFormFileCollection files)
-        {
-            if (files.Count < 1)
-                throw new ArgumentInvalidException(nameof(files), "Нет файла");
-
-            var file = files[0];
-            if (Path.GetExtension(file.FileName).ToLower() != ".xlsx")
-                throw new ArgumentInvalidException(nameof(files), "Требуется .xlsx файл.");
-
-            return file.OpenReadStream();
-        }
-    }
-}
\ No newline at end of file