For security reasons, not all file types are permitted. You can only upload a file if it has one of the following extensions:
- .docx
- .doc
- .xls
- .xlsx
- .txt
- .png
- .gif
- .tiff
- .jpg
- .jpeg
- .msg
- .xps
- .zip
- .rar
- .ppt
- .pptx
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