diff --git a/projects/ucap-webmessenger-core/src/lib/type/app-type.type.ts b/projects/ucap-webmessenger-core/src/lib/types/app-type.type.ts
similarity index 100%
rename from projects/ucap-webmessenger-core/src/lib/type/app-type.type.ts
rename to projects/ucap-webmessenger-core/src/lib/types/app-type.type.ts
diff --git a/projects/ucap-webmessenger-core/src/lib/type/call-alarm.type.ts b/projects/ucap-webmessenger-core/src/lib/types/call-alarm.type.ts
similarity index 100%
rename from projects/ucap-webmessenger-core/src/lib/type/call-alarm.type.ts
rename to projects/ucap-webmessenger-core/src/lib/types/call-alarm.type.ts
diff --git a/projects/ucap-webmessenger-core/src/lib/type/call-forward.type.ts b/projects/ucap-webmessenger-core/src/lib/types/call-forward.type.ts
similarity index 100%
rename from projects/ucap-webmessenger-core/src/lib/type/call-forward.type.ts
rename to projects/ucap-webmessenger-core/src/lib/types/call-forward.type.ts
diff --git a/projects/ucap-webmessenger-core/src/lib/type/call-mode.type.ts b/projects/ucap-webmessenger-core/src/lib/types/call-mode.type.ts
similarity index 100%
rename from projects/ucap-webmessenger-core/src/lib/type/call-mode.type.ts
rename to projects/ucap-webmessenger-core/src/lib/types/call-mode.type.ts
diff --git a/projects/ucap-webmessenger-core/src/lib/type/caller-type.type.ts b/projects/ucap-webmessenger-core/src/lib/types/caller-type.type.ts
similarity index 100%
rename from projects/ucap-webmessenger-core/src/lib/type/caller-type.type.ts
rename to projects/ucap-webmessenger-core/src/lib/types/caller-type.type.ts
diff --git a/projects/ucap-webmessenger-core/src/lib/type/const.type.ts b/projects/ucap-webmessenger-core/src/lib/types/const.type.ts
similarity index 100%
rename from projects/ucap-webmessenger-core/src/lib/type/const.type.ts
rename to projects/ucap-webmessenger-core/src/lib/types/const.type.ts
diff --git a/projects/ucap-webmessenger-core/src/lib/type/default-screen.type.ts b/projects/ucap-webmessenger-core/src/lib/types/default-screen.type.ts
similarity index 100%
rename from projects/ucap-webmessenger-core/src/lib/type/default-screen.type.ts
rename to projects/ucap-webmessenger-core/src/lib/types/default-screen.type.ts
diff --git a/projects/ucap-webmessenger-core/src/lib/type/device-devision.type.ts b/projects/ucap-webmessenger-core/src/lib/types/device-devision.type.ts
similarity index 100%
rename from projects/ucap-webmessenger-core/src/lib/type/device-devision.type.ts
rename to projects/ucap-webmessenger-core/src/lib/types/device-devision.type.ts
diff --git a/projects/ucap-webmessenger-core/src/lib/type/device-type.type.ts b/projects/ucap-webmessenger-core/src/lib/types/device-type.type.ts
similarity index 100%
rename from projects/ucap-webmessenger-core/src/lib/type/device-type.type.ts
rename to projects/ucap-webmessenger-core/src/lib/types/device-type.type.ts
diff --git a/projects/ucap-webmessenger-core/src/lib/type/file-transfer-permissions.type.ts b/projects/ucap-webmessenger-core/src/lib/types/file-transfer-permissions.type.ts
similarity index 100%
rename from projects/ucap-webmessenger-core/src/lib/type/file-transfer-permissions.type.ts
rename to projects/ucap-webmessenger-core/src/lib/types/file-transfer-permissions.type.ts
diff --git a/projects/ucap-webmessenger-core/src/lib/type/locale-code.type.ts b/projects/ucap-webmessenger-core/src/lib/types/locale-code.type.ts
similarity index 100%
rename from projects/ucap-webmessenger-core/src/lib/type/locale-code.type.ts
rename to projects/ucap-webmessenger-core/src/lib/types/locale-code.type.ts
diff --git a/projects/ucap-webmessenger-core/src/lib/type/notification-method.type.ts b/projects/ucap-webmessenger-core/src/lib/types/notification-method.type.ts
similarity index 100%
rename from projects/ucap-webmessenger-core/src/lib/type/notification-method.type.ts
rename to projects/ucap-webmessenger-core/src/lib/types/notification-method.type.ts
diff --git a/projects/ucap-webmessenger-core/src/lib/type/organization-chart-permissions.type.ts b/projects/ucap-webmessenger-core/src/lib/types/organization-chart-permissions.type.ts
similarity index 100%
rename from projects/ucap-webmessenger-core/src/lib/type/organization-chart-permissions.type.ts
rename to projects/ucap-webmessenger-core/src/lib/types/organization-chart-permissions.type.ts
diff --git a/projects/ucap-webmessenger-core/src/lib/type/push-type.type.ts b/projects/ucap-webmessenger-core/src/lib/types/push-type.type.ts
similarity index 100%
rename from projects/ucap-webmessenger-core/src/lib/type/push-type.type.ts
rename to projects/ucap-webmessenger-core/src/lib/types/push-type.type.ts
diff --git a/projects/ucap-webmessenger-core/src/lib/type/status-code.type.ts b/projects/ucap-webmessenger-core/src/lib/types/status-code.type.ts
similarity index 100%
rename from projects/ucap-webmessenger-core/src/lib/type/status-code.type.ts
rename to projects/ucap-webmessenger-core/src/lib/types/status-code.type.ts
diff --git a/projects/ucap-webmessenger-core/src/lib/type/status-type.type.ts b/projects/ucap-webmessenger-core/src/lib/types/status-type.type.ts
similarity index 100%
rename from projects/ucap-webmessenger-core/src/lib/type/status-type.type.ts
rename to projects/ucap-webmessenger-core/src/lib/types/status-type.type.ts
diff --git a/projects/ucap-webmessenger-core/src/lib/type/video-conference-type.type.ts b/projects/ucap-webmessenger-core/src/lib/types/video-conference-type.type.ts
similarity index 100%
rename from projects/ucap-webmessenger-core/src/lib/type/video-conference-type.type.ts
rename to projects/ucap-webmessenger-core/src/lib/types/video-conference-type.type.ts
diff --git a/projects/ucap-webmessenger-core/src/lib/utils/mime.util.ts b/projects/ucap-webmessenger-core/src/lib/utils/mime.util.ts
index 0c0e3ff1..c90f7cb8 100644
--- a/projects/ucap-webmessenger-core/src/lib/utils/mime.util.ts
+++ b/projects/ucap-webmessenger-core/src/lib/utils/mime.util.ts
@@ -1,198 +1,169 @@
-const MimeExtensions: {
-  [param: string]: string;
-} = {
-  'application/envoy': 'evy',
-  'application/fractals': 'fif',
-  'application/futuresplash': 'spl',
-  'application/hta': 'hta',
-  'application/internet-property-stream': 'acx',
-  'application/mac-binhex40': 'hqx',
-  'application/msword': 'doc',
-  'application/msword': 'dot',
-  'application/octet-stream': '*',
-  'application/octet-stream': 'bin',
-  'application/octet-stream': 'class',
-  'application/octet-stream': 'dms',
-  'application/octet-stream': 'exe',
-  'application/octet-stream': 'lha',
-  'application/octet-stream': 'lzh',
-  'application/oda': 'oda',
-  'application/olescript': 'axs',
-  'application/pdf': 'pdf',
-  'application/pics-rules': 'prf',
-  'application/pkcs10': 'p10',
-  'application/pkix-crl': 'crl',
-  'application/postscript': 'ai',
-  'application/postscript': 'eps',
-  'application/postscript': 'ps',
-  'application/rtf': 'rtf',
-  'application/set-payment-initiation': 'setpay',
-  'application/set-registration-initiation': 'setreg',
-  'application/vnd.ms-excel': 'xla',
-  'application/vnd.ms-excel': 'xlc',
-  'application/vnd.ms-excel': 'xlm',
-  'application/vnd.ms-excel': 'xls',
-  'application/vnd.ms-excel': 'xlt',
-  'application/vnd.ms-excel': 'xlw',
-  'application/vnd.ms-outlook': 'msg',
-  'application/vnd.ms-pkicertstore': 'sst',
-  'application/vnd.ms-pkiseccat': 'cat',
-  'application/vnd.ms-pkistl': 'stl',
-  'application/vnd.ms-powerpoint': 'pot',
-  'application/vnd.ms-powerpoint': 'pps',
-  'application/vnd.ms-powerpoint': 'ppt',
-  'application/vnd.ms-project': 'mpp',
-  'application/vnd.ms-works': 'wcm',
-  'application/vnd.ms-works': 'wdb',
-  'application/vnd.ms-works': 'wks',
-  'application/vnd.ms-works': 'wps',
-  'application/winhlp': 'hlp',
-  'application/x-bcpio': 'bcpio',
-  'application/x-cdf': 'cdf',
-  'application/x-compress': 'z',
-  'application/x-compressed': 'tgz',
-  'application/x-cpio': 'cpio',
-  'application/x-csh': 'csh',
-  'application/x-director': 'dcr',
-  'application/x-director': 'dir',
-  'application/x-director': 'dxr',
-  'application/x-dvi': 'dvi',
-  'application/x-gtar': 'gtar',
-  'application/x-gzip': 'gz',
-  'application/x-hdf': 'hdf',
-  'application/x-internet-signup': 'ins',
-  'application/x-internet-signup': 'isp',
-  'application/x-iphone': 'iii',
-  'application/x-javascript': 'js',
-  'application/x-latex': 'latex',
-  'application/x-msaccess': 'mdb',
-  'application/x-mscardfile': 'crd',
-  'application/x-msclip': 'clp',
-  'application/x-msdownload': 'dll',
-  'application/x-msmediaview': 'm13',
-  'application/x-msmediaview': 'm14',
-  'application/x-msmediaview': 'mvb',
-  'application/x-msmetafile': 'wmf',
-  'application/x-msmoney': 'mny',
-  'application/x-mspublisher': 'pub',
-  'application/x-msschedule': 'scd',
-  'application/x-msterminal': 'trm',
-  'application/x-mswrite': 'wri',
-  'application/x-netcdf': 'cdf',
-  'application/x-netcdf': 'nc',
-  'application/x-perfmon': 'pma',
-  'application/x-perfmon': 'pmc',
-  'application/x-perfmon': 'pml',
-  'application/x-perfmon': 'pmr',
-  'application/x-perfmon': 'pmw',
-  'application/x-pkcs12': 'p12',
-  'application/x-pkcs12': 'pfx',
-  'application/x-pkcs7-certificates': 'p7b',
-  'application/x-pkcs7-certificates': 'spc',
-  'application/x-pkcs7-certreqresp': 'p7r',
-  'application/x-pkcs7-mime': 'p7c',
-  'application/x-pkcs7-mime': 'p7m',
-  'application/x-pkcs7-signature': 'p7s',
-  'application/x-sh': 'sh',
-  'application/x-shar': 'shar',
-  'application/x-shockwave-flash': 'swf',
-  'application/x-stuffit': 'sit',
-  'application/x-sv4cpio': 'sv4cpio',
-  'application/x-sv4crc': 'sv4crc',
-  'application/x-tar': 'tar',
-  'application/x-tcl': 'tcl',
-  'application/x-tex': 'tex',
-  'application/x-texinfo': 'texi',
-  'application/x-texinfo': 'texinfo',
-  'application/x-troff': 'roff',
-  'application/x-troff': 't',
-  'application/x-troff': 'tr',
-  'application/x-troff-man': 'man',
-  'application/x-troff-me': 'me',
-  'application/x-troff-ms': 'ms',
-  'application/x-ustar': 'ustar',
-  'application/x-wais-source': 'src',
-  'application/x-x509-ca-cert': 'cer',
-  'application/x-x509-ca-cert': 'crt',
-  'application/x-x509-ca-cert': 'der',
-  'application/ynd.ms-pkipko': 'pko',
-  'application/zip': 'zip',
-  'audio/basic': 'au',
-  'audio/basic': 'snd',
-  'audio/mid': 'mid',
-  'audio/mid': 'rmi',
-  'audio/mpeg': 'mp3',
-  'audio/x-aiff': 'aif',
-  'audio/x-aiff': 'aifc',
-  'audio/x-aiff': 'aiff',
-  'audio/x-mpegurl': 'm3u',
-  'audio/x-pn-realaudio': 'ra',
-  'audio/x-pn-realaudio': 'ram',
-  'audio/x-wav': 'wav',
-  'image/bmp': 'bmp',
-  'image/cis-cod': 'cod',
-  'image/gif': 'gif',
-  'image/ief': 'ief',
-  'image/jpeg': 'jpe',
-  'image/jpeg': 'jpeg',
-  'image/jpeg': 'jpg',
-  'image/pipeg': 'jfif',
-  'image/svg+xml': 'svg',
-  'image/tiff': 'tif',
-  'image/tiff': 'tiff',
-  'image/x-cmu-raster': 'ras',
-  'image/x-cmx': 'cmx',
-  'image/x-icon': 'ico',
-  'image/x-portable-anymap': 'pnm',
-  'image/x-portable-bitmap': 'pbm',
-  'image/x-portable-graymap': 'pgm',
-  'image/x-portable-pixmap': 'ppm',
-  'image/x-rgb': 'rgb',
-  'image/x-xbitmap': 'xbm',
-  'image/x-xpixmap': 'xpm',
-  'image/x-xwindowdump': 'xwd',
-  'message/rfc822': 'mht',
-  'message/rfc822': 'mhtml',
-  'message/rfc822': 'nws',
-  'text/css': 'css',
-  'text/h323': '323',
-  'text/html': 'htm',
-  'text/html': 'html',
-  'text/html': 'stm',
-  'text/iuls': 'uls',
-  'text/plain': 'bas',
-  'text/plain': 'c',
-  'text/plain': 'h',
-  'text/plain': 'txt',
-  'text/richtext': 'rtx',
-  'text/scriptlet': 'sct',
-  'text/tab-separated-values': 'tsv',
-  'text/webviewhtml': 'htt',
-  'text/x-component': 'htc',
-  'text/x-setext': 'etx',
-  'text/x-vcard': 'vcf',
-  'video/mpeg': 'mp2',
-  'video/mpeg': 'mpa',
-  'video/mpeg': 'mpe',
-  'video/mpeg': 'mpeg',
-  'video/mpeg': 'mpg',
-  'video/mpeg': 'mpv2',
-  'video/mp4': 'mp4',
-  'video/quicktime': 'mov',
-  'video/quicktime': 'qt',
-  'video/x-la-asf': 'lsf',
-  'video/x-la-asf': 'lsx',
-  'video/x-ms-asf': 'asf',
-  'video/x-ms-asf': 'asr',
-  'video/x-ms-asf': 'asx',
-  'video/x-msvideo': 'avi',
-  'video/x-sgi-movie': 'movie',
-  'x-world/x-vrml': 'flr',
-  'x-world/x-vrml': 'vrml',
-  'x-world/x-vrml': 'wrl',
-  'x-world/x-vrml': 'wrz',
-  'x-world/x-vrml': 'xaf',
-  'x-world/x-vrml': 'xof'
-};
+const MimeExtensions: Map<string, string> = new Map([
+  ['application/envoy', 'evy'],
+  ['application/fractals', 'fif'],
+  ['application/futuresplash', 'spl'],
+  ['application/hta', 'hta'],
+  ['application/internet-property-stream', 'acx'],
+  ['application/mac-binhex40', 'hqx'],
+  ['application/msword', 'doc'],
+  ['application/octet-stream', 'bin'],
+  ['application/oda', 'oda'],
+  ['application/olescript', 'axs'],
+  ['application/pdf', 'pdf'],
+  ['application/pics-rules', 'prf'],
+  ['application/pkcs10', 'p10'],
+  ['application/pkix-crl', 'crl'],
+  ['application/postscript', 'ps'],
+  ['application/rtf', 'rtf'],
+  ['application/set-payment-initiation', 'setpay'],
+  ['application/set-registration-initiation', 'setreg'],
+  ['application/vnd.ms-access', 'mdb'],
+  ['application/vnd.ms-excel', 'xls'],
+  ['application/vnd.ms-excel.addin.macroEnabled.12', 'xlam'],
+  ['application/vnd.ms-excel.sheet.binary.macroEnabled.12', 'xlsb'],
+  ['application/vnd.ms-excel.sheet.macroEnabled.12', 'xlsm'],
+  ['application/vnd.ms-excel.template.macroEnabled.12', 'xltm'],
+  ['application/vnd.ms-outlook', 'msg'],
+  ['application/vnd.ms-pkicertstore', 'sst'],
+  ['application/vnd.ms-pkiseccat', 'cat'],
+  ['application/vnd.ms-pkistl', 'stl'],
+  ['application/vnd.ms-powerpoint', 'ppt'],
+  ['application/vnd.ms-powerpoint.addin.macroEnabled.12', 'ppam'],
+  ['application/vnd.ms-powerpoint.presentation.macroEnabled.12', 'pptm'],
+  ['application/vnd.ms-powerpoint.slideshow.macroEnabled.12', 'ppsm'],
+  ['application/vnd.ms-powerpoint.template.macroEnabled.12', 'potm'],
+  ['application/vnd.ms-project', 'mpp'],
+  ['application/vnd.ms-word.document.macroEnabled.12', 'docm'],
+  ['application/vnd.ms-word.template.macroEnabled.12', 'dotm'],
+  ['application/vnd.ms-works', 'wks'],
+  [
+    'application/vnd.openxmlformats-officedocument.presentationml.presentation',
+    'pptx'
+  ],
+  [
+    'application/vnd.openxmlformats-officedocument.presentationml.slideshow',
+    'ppsx'
+  ],
+  [
+    'application/vnd.openxmlformats-officedocument.presentationml.template',
+    'potx'
+  ],
+  ['application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', 'xlsx'],
+  [
+    'application/vnd.openxmlformats-officedocument.spreadsheetml.template',
+    'xltx'
+  ],
+  [
+    'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
+    'docx'
+  ],
+  [
+    'application/vnd.openxmlformats-officedocument.wordprocessingml.template',
+    'dotx'
+  ],
+  ['application/winhlp', 'hlp'],
+  ['application/x-bcpio', 'bcpio'],
+  ['application/x-cdf', 'cdf'],
+  ['application/x-compress', 'z'],
+  ['application/x-compressed', 'tgz'],
+  ['application/x-cpio', 'cpio'],
+  ['application/x-csh', 'csh'],
+  ['application/x-director', 'dcr'],
+  ['application/x-dvi', 'dvi'],
+  ['application/x-gtar', 'gtar'],
+  ['application/x-gzip', 'gz'],
+  ['application/x-hdf', 'hdf'],
+  ['application/x-internet-signup', 'isp'],
+  ['application/x-iphone', 'iii'],
+  ['application/x-javascript', 'js'],
+  ['application/x-latex', 'latex'],
+  ['application/x-msaccess', 'mdb'],
+  ['application/x-mscardfile', 'crd'],
+  ['application/x-msclip', 'clp'],
+  ['application/x-msdownload', 'dll'],
+  ['application/x-msmediaview', 'mvb'],
+  ['application/x-msmetafile', 'wmf'],
+  ['application/x-msmoney', 'mny'],
+  ['application/x-mspublisher', 'pub'],
+  ['application/x-msschedule', 'scd'],
+  ['application/x-msterminal', 'trm'],
+  ['application/x-mswrite', 'wri'],
+  ['application/x-netcdf', 'cdf'],
+  ['application/x-perfmon', 'pma'],
+  ['application/x-pkcs12', 'p12'],
+  ['application/x-pkcs7-certificates', 'p7b'],
+  ['application/x-pkcs7-certreqresp', 'p7r'],
+  ['application/x-pkcs7-mime', 'p7m'],
+  ['application/x-pkcs7-signature', 'p7s'],
+  ['application/x-sh', 'sh'],
+  ['application/x-shar', 'shar'],
+  ['application/x-shockwave-flash', 'swf'],
+  ['application/x-stuffit', 'sit'],
+  ['application/x-sv4cpio', 'sv4cpio'],
+  ['application/x-sv4crc', 'sv4crc'],
+  ['application/x-tar', 'tar'],
+  ['application/x-tcl', 'tcl'],
+  ['application/x-tex', 'tex'],
+  ['application/x-texinfo', 'texinfo'],
+  ['application/x-troff', 'roff'],
+  ['application/x-troff-man', 'man'],
+  ['application/x-troff-me', 'me'],
+  ['application/x-troff-ms', 'ms'],
+  ['application/x-ustar', 'ustar'],
+  ['application/x-wais-source', 'src'],
+  ['application/x-x509-ca-cert', 'crt'],
+  ['application/ynd.ms-pkipko', 'pko'],
+  ['application/zip', 'zip'],
+  ['audio/basic', 'au'],
+  ['audio/mid', 'mid'],
+  ['audio/mpeg', 'mp3'],
+  ['audio/x-aiff', 'aiff'],
+  ['audio/x-mpegurl', 'm3u'],
+  ['audio/x-pn-realaudio', 'ra'],
+  ['audio/x-wav', 'wav'],
+  ['image/bmp', 'bmp'],
+  ['image/cis-cod', 'cod'],
+  ['image/gif', 'gif'],
+  ['image/ief', 'ief'],
+  ['image/jpeg', 'jpg'],
+  ['image/pipeg', 'jfif'],
+  ['image/svg+xml', 'svg'],
+  ['image/tiff', 'tiff'],
+  ['image/x-cmu-raster', 'ras'],
+  ['image/x-cmx', 'cmx'],
+  ['image/x-icon', 'ico'],
+  ['image/x-portable-anymap', 'pnm'],
+  ['image/x-portable-bitmap', 'pbm'],
+  ['image/x-portable-graymap', 'pgm'],
+  ['image/x-portable-pixmap', 'ppm'],
+  ['image/x-rgb', 'rgb'],
+  ['image/x-xbitmap', 'xbm'],
+  ['image/x-xpixmap', 'xpm'],
+  ['image/x-xwindowdump', 'xwd'],
+  ['message/rfc822', 'mhtml'],
+  ['text/css', 'css'],
+  ['text/h323', '323'],
+  ['text/html', 'html'],
+  ['text/iuls', 'uls'],
+  ['text/plain', 'txt'],
+  ['text/richtext', 'rtx'],
+  ['text/scriptlet', 'sct'],
+  ['text/tab-separated-values', 'tsv'],
+  ['text/webviewhtml', 'htt'],
+  ['text/x-component', 'htc'],
+  ['text/x-setext', 'etx'],
+  ['text/x-vcard', 'vcf'],
+  ['video/mp4', 'mp4'],
+  ['video/mpeg', 'mpeg'],
+  ['video/quicktime', 'mov'],
+  ['video/x-ms-asf', 'asf'],
+  ['video/x-msvideo', 'avi'],
+  ['video/x-sgi-movie', 'movie'],
+  ['x-world/x-vrml', 'vrml']
+]);
 
-export class MimeUtil {}
+export class MimeUtil {
+  public static fileExtensionFromMime(mime: string): string {
+    return MimeExtensions.get(mime);
+  }
+}
diff --git a/projects/ucap-webmessenger-core/src/public-api.ts b/projects/ucap-webmessenger-core/src/public-api.ts
index 530adf92..00883831 100644
--- a/projects/ucap-webmessenger-core/src/public-api.ts
+++ b/projects/ucap-webmessenger-core/src/public-api.ts
@@ -2,20 +2,22 @@
  * Public API Surface of ucap-webmessenger-core
  */
 
-export * from './lib/type/app-type.type';
-export * from './lib/type/call-alarm.type';
-export * from './lib/type/call-forward.type';
-export * from './lib/type/call-mode.type';
-export * from './lib/type/caller-type.type';
-export * from './lib/type/const.type';
-export * from './lib/type/default-screen.type';
-export * from './lib/type/device-devision.type';
-export * from './lib/type/device-type.type';
-export * from './lib/type/file-transfer-permissions.type';
-export * from './lib/type/locale-code.type';
-export * from './lib/type/notification-method.type';
-export * from './lib/type/organization-chart-permissions.type';
-export * from './lib/type/push-type.type';
-export * from './lib/type/status-code.type';
-export * from './lib/type/status-type.type';
-export * from './lib/type/video-conference-type.type';
+export * from './lib/types/app-type.type';
+export * from './lib/types/call-alarm.type';
+export * from './lib/types/call-forward.type';
+export * from './lib/types/call-mode.type';
+export * from './lib/types/caller-type.type';
+export * from './lib/types/const.type';
+export * from './lib/types/default-screen.type';
+export * from './lib/types/device-devision.type';
+export * from './lib/types/device-type.type';
+export * from './lib/types/file-transfer-permissions.type';
+export * from './lib/types/locale-code.type';
+export * from './lib/types/notification-method.type';
+export * from './lib/types/organization-chart-permissions.type';
+export * from './lib/types/push-type.type';
+export * from './lib/types/status-code.type';
+export * from './lib/types/status-type.type';
+export * from './lib/types/video-conference-type.type';
+
+export * from './lib/utils/mime.util';
diff --git a/projects/ucap-webmessenger-ui/src/assets/scss/file-icon/_icons.scss b/projects/ucap-webmessenger-ui/src/assets/scss/file-icon/_icons.scss
index f662f635..3b85fde0 100644
--- a/projects/ucap-webmessenger-ui/src/assets/scss/file-icon/_icons.scss
+++ b/projects/ucap-webmessenger-ui/src/assets/scss/file-icon/_icons.scss
@@ -185,7 +185,7 @@ $icon-list: ('3dm', '', $world), ('3dmf', '', $world), ('7z', '', $zip),
       display: block;
       width: 100%;
       overflow: visible;
-      z-index: 9;
+      // z-index: 9;
       content: '';
       font-family: 'Material Icons';
       font-size: $icon-container-size / 4.2;