Picasso 64 image format
File type: Graphics file
A p64 file extension is related to the Picasso 64 picture image format. Probably obsolete.
Found 2 different file type records with the same p64 filename suffix.
File type category:
Graphics file
Date updated: June 23, 2025
The p64 file extension is also used for some older Picasso 64 picture image format.
Most likely some old format without support from developer. No further information could be found about this format.
Use XnView to work with *.p64 files.
Probably can be exported to other formats.
File type category:
Digital video and movie file
Date updated: September 27, 2026
The P64 file extension is associated with H.261 video. The file stores an H.261-encoded video stream.
H.261 was standardized by the ITU-T for video conferencing over connections using multiples of 64 kbit/s. It was widely used in older conferencing systems but has largely been superseded by newer video standards.
Open the file with a media player that supports H.261 decoding, such as VLC media player or MPlayer. Because P64 is an uncommon extension, the player may not identify it automatically; opening the file from the program or renaming a copy with a commonly recognized video extension may help.
If those programs cannot open it, the file may require the original conferencing software or a compatible H.261 playback utility.
An H.261-capable media converter can usually transcode the video to a more widely supported format, such as MPEG-4 video in an MP4 container. The input may need to be identified explicitly as an H.261 stream because the P64 extension is uncommon.
Conversion can reduce quality and may discard information from the original stream. If no compatible decoder can read the file, it cannot be converted reliably.
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