diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/bot/Ktor/base/MultipartRequestCallFactory.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/bot/Ktor/base/MultipartRequestCallFactory.kt
index ca41189baf..2d42d15ea9 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/bot/Ktor/base/MultipartRequestCallFactory.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/bot/Ktor/base/MultipartRequestCallFactory.kt
@@ -24,7 +24,6 @@ class MultipartRequestCallFactory : AbstractRequestCallFactory() {
                         is MultipartFile -> appendInput(
                             key,
                             Headers.build {
-                                append(HttpHeaders.ContentType, value.mimeType)
                                 append(HttpHeaders.ContentDisposition, "filename=${value.fileId}")
                             },
                             block = value.file::input
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/abstracts/InputFile.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/abstracts/InputFile.kt
index a024cdbcac..b306112118 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/abstracts/InputFile.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/requests/abstracts/InputFile.kt
@@ -48,29 +48,30 @@ object InputFileSerializer : KSerializer<InputFile> {
 @Serializable(InputFileSerializer::class)
 data class MultipartFile (
     val file: StorageFile,
-    val mimeType: String = file.storageFileInfo.contentType,
     val filename: String = file.storageFileInfo.fileName
 ) : InputFile() {
     override val fileId: String = file.storageFileInfo.generateCustomName()
+
+    @Deprecated("This constructor is redundant. Use constructor without mime type")
+    constructor(file: StorageFile, mimeType: String, filename: String): this(file, filename)
 }
 
 @Suppress("NOTHING_TO_INLINE", "unused")
 inline fun StorageFile.asMultipartFile() = MultipartFile(this)
 
+@Deprecated("This method is redundant. Use asMultipartFile without mime type")
 @Suppress("NOTHING_TO_INLINE", "unused")
 inline fun ByteArray.asMultipartFile(
     fileName: String,
     mimeType: MimeType
-) = MultipartFile(asStorageFile(fileName, mimeType))
+) = MultipartFile(asStorageFile(fileName))
 
 @Suppress("NOTHING_TO_INLINE", "unused")
 suspend inline fun ByteReadChannel.asMultipartFile(
-    fileName: String,
-    mimeType: MimeType
-) = MultipartFile(asStorageFile(fileName, mimeType))
+    fileName: String
+) = MultipartFile(asStorageFile(fileName))
 
 @Suppress("NOTHING_TO_INLINE", "unused")
 suspend inline fun ByteReadChannelAllocator.asMultipartFile(
-    fileName: String,
-    mimeType: MimeType
-) = this.invoke().asMultipartFile(fileName, mimeType)
+    fileName: String
+) = this.invoke().asMultipartFile(fileName)
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/utils/StorageFile.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/utils/StorageFile.kt
index 1638729cd7..a67bb9f19e 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/utils/StorageFile.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/utils/StorageFile.kt
@@ -14,9 +14,14 @@ import kotlinx.serialization.Serializable
  */
 @Serializable
 data class StorageFileInfo(
-    val contentType: String,
     val fileName: String
 ) {
+    @Deprecated("This constructor is redundant. Use constructor without mime type")
+    constructor(
+        contentType: String,
+        fileName: String
+    ): this(fileName)
+
     /**
      * This methods is required for random generation of name for keeping warranties about unique file name
      */
@@ -40,13 +45,24 @@ data class StorageFile(
         get() = inputSource()
 }
 
+@Deprecated("This constructor is redundant. Use constructor without mime type")
 @Suppress("NOTHING_TO_INLINE")
 inline fun StorageFile(
     fileName: String,
     bytes: ByteArray,
     mimeType: MimeType
 ) = StorageFile(
-    StorageFileInfo(mimeType.raw, fileName)
+    StorageFileInfo(fileName)
+) {
+    ByteReadPacket(bytes)
+}
+
+@Suppress("NOTHING_TO_INLINE")
+inline fun StorageFile(
+    fileName: String,
+    bytes: ByteArray
+) = StorageFile(
+    StorageFileInfo(fileName)
 ) {
     ByteReadPacket(bytes)
 }
@@ -54,27 +70,30 @@ inline fun StorageFile(
 @Suppress("NOTHING_TO_INLINE")
 suspend inline fun StorageFile(
     fileName: String,
-    byteReadChannel: ByteReadChannel,
-    mimeType: MimeType
+    byteReadChannel: ByteReadChannel
 ) = StorageFile(
-    StorageFileInfo(mimeType.raw, fileName),
+    StorageFileInfo(fileName),
     byteReadChannel.asInput().let { { it } }
 )
 
+@Suppress("NOTHING_TO_INLINE", "unused")
+inline fun ByteArray.asStorageFile(
+    fileName: String
+) = StorageFile(fileName, this)
+
+@Deprecated("This constructor is redundant. Use constructor without mime type")
 @Suppress("NOTHING_TO_INLINE", "unused")
 inline fun ByteArray.asStorageFile(
     fileName: String,
     mimeType: MimeType
-) = StorageFile(fileName, this, mimeType)
+) = asStorageFile(fileName)
 
 @Suppress("NOTHING_TO_INLINE", "unused")
 suspend inline fun ByteReadChannel.asStorageFile(
-    fileName: String,
-    mimeType: MimeType
-) = StorageFile(fileName, this, mimeType)
+    fileName: String
+) = StorageFile(fileName, this)
 
 @Suppress("NOTHING_TO_INLINE", "unused")
 suspend inline fun ByteReadChannelAllocator.asStorageFile(
-    fileName: String,
-    mimeType: MimeType
-) = this.invoke().asStorageFile(fileName, mimeType)
+    fileName: String
+) = this.invoke().asStorageFile(fileName)
diff --git a/tgbotapi.core/src/jvmMain/kotlin/dev/inmo/tgbotapi/utils/StorageFileFactory.kt b/tgbotapi.core/src/jvmMain/kotlin/dev/inmo/tgbotapi/utils/StorageFileFactory.kt
index 8d7ebe5c53..9d26befaeb 100644
--- a/tgbotapi.core/src/jvmMain/kotlin/dev/inmo/tgbotapi/utils/StorageFileFactory.kt
+++ b/tgbotapi.core/src/jvmMain/kotlin/dev/inmo/tgbotapi/utils/StorageFileFactory.kt
@@ -7,10 +7,7 @@ import java.nio.file.Files
 fun StorageFile(
     file: File
 ) = StorageFile(
-    StorageFileInfo(
-        Files.probeContentType(file.toPath()),
-        file.name
-    )
+    StorageFileInfo(file.name)
 ) {
     file.inputStream().asInput()
 }
diff --git a/tgbotapi.extensions.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/types/files/ContentAsStorageFile.kt b/tgbotapi.extensions.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/types/files/ContentAsStorageFile.kt
index b9716833eb..53b192e74e 100644
--- a/tgbotapi.extensions.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/types/files/ContentAsStorageFile.kt
+++ b/tgbotapi.extensions.utils/src/commonMain/kotlin/dev/inmo/tgbotapi/extensions/utils/types/files/ContentAsStorageFile.kt
@@ -11,35 +11,28 @@ import dev.inmo.tgbotapi.utils.*
 
 suspend fun convertToStorageFile(
     downloadStreamAllocator: ByteReadChannelAllocator,
-    pathedFile: PathedFile,
-    mimeType: MimeType
+    pathedFile: PathedFile
 ): StorageFile {
     return downloadStreamAllocator.asStorageFile(
-        pathedFile.fileName,
-        mimeType
+        pathedFile.fileName
     )
 }
 
 suspend fun TelegramBot.convertToStorageFile(
-    pathedFile: PathedFile,
-    mimeType: MimeType
+    pathedFile: PathedFile
 ): StorageFile = convertToStorageFile(
     execute(DownloadFileStream(pathedFile.filePath)),
-    pathedFile,
-    mimeType
+    pathedFile
 )
 
 suspend fun TelegramBot.convertToStorageFile(
-    fileId: FileId,
-    mimeType: MimeType
-): StorageFile = convertToStorageFile(execute(GetFile(fileId)), mimeType)
+    fileId: FileId
+): StorageFile = convertToStorageFile(execute(GetFile(fileId)))
 
 suspend fun TelegramBot.convertToStorageFile(
-    file: TelegramMediaFile,
-    mimeType: MimeType
-): StorageFile = convertToStorageFile(file.fileId, mimeType)
+    file: TelegramMediaFile
+): StorageFile = convertToStorageFile(file.fileId)
 
 suspend fun TelegramBot.convertToStorageFile(
-    content: MediaContent,
-    mimeType: MimeType
-): StorageFile = convertToStorageFile(content.media, mimeType)
+    content: MediaContent
+): StorageFile = convertToStorageFile(content.media)
diff --git a/tgbotapi.extensions.utils/src/jvmMain/kotlin/dev/inmo/tgbotapi/extensions/utils/types/files/AdditionalContentAsStorageFile.kt b/tgbotapi.extensions.utils/src/jvmMain/kotlin/dev/inmo/tgbotapi/extensions/utils/types/files/AdditionalContentAsStorageFile.kt
deleted file mode 100644
index 927e7d4c19..0000000000
--- a/tgbotapi.extensions.utils/src/jvmMain/kotlin/dev/inmo/tgbotapi/extensions/utils/types/files/AdditionalContentAsStorageFile.kt
+++ /dev/null
@@ -1,45 +0,0 @@
-package dev.inmo.tgbotapi.extensions.utils.types.files
-
-import dev.inmo.tgbotapi.bot.TelegramBot
-import dev.inmo.tgbotapi.extensions.utils.asMimedMediaFile
-import dev.inmo.tgbotapi.requests.DownloadFileStream
-import dev.inmo.tgbotapi.requests.abstracts.FileId
-import dev.inmo.tgbotapi.requests.get.GetFile
-import dev.inmo.tgbotapi.types.files.PathedFile
-import dev.inmo.tgbotapi.types.files.abstracts.TelegramMediaFile
-import dev.inmo.tgbotapi.types.message.content.abstracts.MediaContent
-import dev.inmo.tgbotapi.utils.*
-import java.nio.file.Files
-import kotlin.io.path.Path
-
-
-suspend fun convertToStorageFile(
-    downloadStreamAllocator: ByteReadChannelAllocator,
-    pathedFile: PathedFile
-): StorageFile {
-    return downloadStreamAllocator.asStorageFile(
-        pathedFile.fileName,
-        Files.probeContentType(Path(pathedFile.fileName)).asMimeType()
-    )
-}
-
-suspend fun TelegramBot.convertToStorageFile(
-    pathedFile: PathedFile
-): StorageFile = convertToStorageFile(
-    execute(DownloadFileStream(pathedFile.filePath)),
-    pathedFile
-)
-
-suspend fun TelegramBot.convertToStorageFile(
-    fileId: FileId
-): StorageFile = convertToStorageFile(execute(GetFile(fileId)))
-
-suspend fun TelegramBot.convertToStorageFile(
-    file: TelegramMediaFile
-): StorageFile = file.asMimedMediaFile() ?.mimeType ?.let {
-    convertToStorageFile(file.fileId, it)
-} ?: convertToStorageFile(file.fileId)
-
-suspend fun TelegramBot.convertToStorageFile(
-    content: MediaContent
-): StorageFile = convertToStorageFile(content.media)