1. Drag and drop a file into Slack, or click the  plus icon next to the message field.
2. Once you've uploaded your file, add a message if you'd like.
3. To change the file's name, click edit next to the current title.
4. For files you want to share later or just keep private, uncheck the Share in option.
5. Click Upload when you're ready.

Slack will include a preview of the file as part of your message. If uploading an image, the preview will display inline unless it's larger than 11,000 px on the longest side or over 32 million px total.

Anyone in the conversation can click the file to open it. To see more options, hover over the file:

   Download a copy to your computer
   Share the file without replies (if any)
   More actions, like star file or create external link

Tip: Hold the Shift key while dropping the file to upload it instantly, bypassing the option to add a title and message. You can also quickly add image files by pasting directly into the message field.

1. Tap the message input box.
2. Tap the   file with clip icon to upload a file or the   image gallery icon to upload a photo. You can choose a photo from your phone or take a new one.
3. You can give the file a title and add a message if you’d like.
4. Tap the  check mark in the top right to send.

Slack will include a preview of the file as part of your message to the channel or direct message. The image will display inline unless it's larger than 11,000 px on the longest side or over 32 million px total.

Anyone in the conversation can tap the file to open and find more options:

  Start or reply to the file thread
  Star the file
  Share the file without replies (if any)
  More actions, like Save Image or Copy Link

1. Tap the   file with clip icon in the input bar to bring up your available files.
2. To upload a file, tap the  files icon, or tap the   image gallery icon to upload a photo. You can choose a photo from your device or take a new one by tapping the  camera icon.
3. You can give the file a title and add a message if you’d like.
4. Tap the   paper plane icon in the input bar.

Slack will include a preview of the file as part of your message to the channel or direct message. The image will display inline unless it's larger than 11,000 px on the longest side or over 32 million px total.

Anyone in the conversation can tap the file to open and find more options:

  Start or reply to the file thread
  Star the file
  Share the file without replies (if any)
  More actions, like Save Image or Copy Link 

It is only possible add files to Slack from your Windows Phone:

1. Tap the  plus icon next to the message box.
2. Choose to upload files from your most recent photos, your OneDrive account, or elsewhere on your device.

1. Hover over the message containing the file you’d like to share.
2. Click the  Share message icon.
3. Choose the channel or direct message you’d like to share the file with and add a message, if you'd like.
4. Click Share. You can share the file in more than one location by repeating these same steps.

1. Press and hold the message containing the file you’d like to share.
2. Tap Share message.
3. Choose the channel or direct message you’d like to share the file with and add a message, if you'd like.
4. Click Send.

1. Select the file you’d like to share.
2. Tap the  Overflow menu in the top right.
3. Tap Share file. 
4. Choose the channel or direct message you’d like to share the file with and add a message, if you'd like. That's it!

1. Hover over the file you’d like to share.
2. Click the  Share file icon.
3. Choose the channel or direct message you’d like to share the file with and add a message, if you'd like.
4. Click Share. You can share the file in more than one location by repeating these same steps.

1. Tap the the file you’d like to share.
2. Tap the  Share icon.
3. Choose the channel or direct message you’d like to share the file with and add a message, if you'd like.
4. Click Send.

1. Select the file you’d like to share.
2. Tap the  Overflow menu in the top right.
3. Tap Share file. 
4. Choose the channel or direct message you’d like to share the file with and add a message, if you'd like. That's it!

1. Hover over the file.
2. Click the  More actions icon.
3. Click Copy link to file. The link is now copied to your clipboard.

1. Tap on the file or image.
2. Tap the  More actions icon.
3. Select Copy Link.

1. Select the file or image.
2. Tap the  Overflow menu in the top right.
3. Select Copy Link.

1. From your desktop, click the  three vertical dots in the top right.
2. Click Your Files to view files shared by you. Click All Files to view all files shared in your workspace.
3. Click Show all file types and choose the file format you're looking for.
4. If viewing All Files, click Everyone to filter files by who uploaded them (including you!). 

1. Swipe from right to left to open the right sidebar.
2. Tap Your Files.
3. Tap Everyone to view all files uploaded by members.
4. Tap Just You to view files uploaded by you.

Unfortunately, it's not possible to view all files from the Android app at this time.

Unfortunately, it's not possible to view all files from the Windows Phone app.

1. Hover over the file you'd like to download.
2. Click the    download icon. That's it!

1. Tap the image you'd like to save.
2. Tap the  three dots icon.
3. Tap Save Image.

1. Tap the image you'd like to save.
2. Tap the  three dots icon.
3. Tap Save Image.

Unfortunately, it's not possible to download files from the Windows Phone app.