What files can be previewed in STAC?
STAC can preview all sort of files, however there are some limitations regarding Audio, Photos and Videos. Some these files have a specific codec that most of the browsers (MS Edge, Google Chrome, Mozilla Firefox, etc.) cannot preview or it is proprietary file, and that is where STAC is limited. The limitation is not in the application, but in the user's workstation.
The STAC team has been working tirelessly to provide a better file viewing experience. One of the solution is the CMS (CIP Media Services) that converts files to be previewed.
Agency must have an active CIP Portal and CIP Storage subscription in order to use the CMS feature.
What file types can be previewed?
Audios
Photos
Videos
Documents
Audios
Extension | Description | Previewed | Converted to Preview |
M4A | MPEG-4 Audio | Yes | No |
MP3 | MPEG Audio Layer III | Yes | No |
OGG | OGG Vorbis Compressed | Yes | No |
OPUS | Opus audio | Yes | No |
TS | Transport Stream | No | Yes |
WAV | Waveform Audio File | Yes | Yes |
Photos
Extension | Description | Previewed | Converted to Preview |
GIF | Graphics Interchange Format | Yes | No |
HEIC, HEIF | High Efficiency Image | No | Yes |
JPG, JPEG | Joint Photographic Experts Group | Yes | No |
NEF | Nikon Electronic Format | No | Yes |
TIF, TIFF | Tag Image File | Yes | No |
WEBP | Web Picture Format | Yes | No |
Videos
Extension | Description | Previewed | Converted to Preview |
3GP | 3rd Generation PP Video Format | Yes | No |
AVI | Audio Video Interleave | No | Yes |
DIVX | Graphics Interchange Format | No | Yes |
FLV | Adobe Flash Video File | No | Yes |
M4V | iTunes Video File | Yes | Yes |
MJP | LG Motion JPEG Video Format | No | Yes |
MKV | Matroska Multimedia Container | No | Yes |
MOV | QuickTime File Format | Yes | Yes |
MP4 | MPEG-4 Part 14 | Yes | No |
MPG / MPEG, MJPEG | Moving Picture Experts Group | No | Yes |
OGM | Ogg Media file | No | Yes |
VOB | Video Object | No | Yes |
WEBM | Web Media Video Format | Yes | No |
WMV | Windows Media Video | No | Yes |
Videos with H.264 codec are likely to be previewed regardless the file extension.
Documents
Extension | Description | Previewed | Converted to Preview |
CSV | MS Excel Comma-Separated Values | Yes | No |
DOC, DOCX | MS Word Document Format | Yes | No |
EML, MSG | Electronic Mail Format | No | Yes |
PDF | Portable Document Format | Yes | No |
PPTX | MS PowerPoint Presentation | Yes | No |
RTF | Rich Text Format | Yes | No |
TXT | Plain Text File | Yes | No |
XLS, XLSX | MS Excel Spreadsheet | Yes | No |
XML | Extensible Markup Language | Yes | No |
Some MS Excel, MS PowerPoint and MS Outlook files may take a extra time to be previewed, depending of the size of the file.
STAC will NOT load images or attachments that are on the email. STAC will only bring the body of the email to be previewed.
STAC may NOT preview some charts or images present in MS PowerPoint or MS Excel Spreadsheet files.
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