Size and format requirements for uploading or previewing files

Size and format requirements for uploading or previewing files

2 min read
I. Intro
This article introduces the size limits for uploading files, as well as the file formats that support online previewing in Lark Docs.
II. Information reference
Maximum file size that can be uploaded
The maximum file size allowed for a single upload varies depending on your organization's Lark plan. See the table below for more information.
Starter
Pro
Enterprise
250 MB
50 GB
100 GB
Note:
  • To learn what's included in each plan and to compare services provided, visit the official Lark website.
  • To discuss plans and upgrade to a new one, contact Support or your Customer Success Manager.
Total number of files that can be uploaded
The total number of files you can upload depends on your storage space capacity. For more information, see Storage, importing, and Trash limit FAQs.
Supported formats and sizes for online previewing
Formats and sizes for uploaded files
File size limits are shown in the table below. File formats not listed in the table can still be uploaded to Lark Docs but cannot be previewed. You would need to download these files to your device to view them.
Note:
  • The table below applies to files uploaded to My Space (or Drive > My Folders), or to folders, My Documentary Library, wiki spaces, as standalone files.
  • The preview size of attached content is limited. For details, see "Formats and sizes for files inserted as attachments" below.
File Type
File Format
Size Limit
Document files
doc, docx, dot, dotx
50 MB
txt, rtf
50 MB
Programming files
such as C, JSON, JAVA
12 MB
Apple files
pages, numbers, key, keynote
Note: Only the first page can be previewed.
50 MB
Spreadsheet files
xls, xlsx, xlsm
12 MB
.csv
50 MB
Presentation files
ppt, pptx, pps, ppsx, pot
200 MB
PDF files
.pdf
100 MB
Image files
gif, bmp
10 MB
jpeg, jpg, png, sketch, psd, psb
50 MB
Video files
mp4, m4v, flv, mkv, wmv
10 GB
mov, avi,
6 GB
Audio files
mp3, aac, ogg, wav, flac
10 GB
Compressed files
tar, gz, bz2, zip, rar, 7z
Note: You can preview the file list and directory structure in the compressed package. However, you cannot preview the files themselves.
512 MB
Formats and sizes for files inserted as attachments
The maximum preview size limit for files inserted as attachments in documents, sheets, bases, mindnotes, and slides is shown in the table below. Files not listed in the table can still be inserted as attachments, but they cannot be previewed online. You would need to download these files to your device to view them.
File Type
File Format
Size Limit
Document files
doc, docx, dot, dotx
50 MB
txt, rtf
50 MB
Programming files
C, JSON, JAVA, and more.
12 MB
Apple files
pages, numbers, key, keynote
Note: Only the first page can be previewed.
50 MB
Spreadsheet files
xls, xlsx, xlsm
12 MB
.csv
50 MB
Presentation files
ppt, pptx, pps, ppsx, pot
200 MB
PDF files
.pdf
100 MB
Image files
gif, bmp
10 MB
jpeg, jpg, png, sketch, psd, psb
50 MB
Video files
mp4, m4v, mov, avi, flv, mkv, wmv
6 GB
Audio files
mp3, aac, wav, flac
10 GB
ogg
6 GB
Compressed files
tar, gz, bz2, zip, rar, 7z
512 MB
III. Related
Written by: Lark Help Center
Updated on 2024-08-16
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