[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"howto:h261:ios:en":3},{"resolvedFromAlias":4,"canonicalExt":5,"ext":5,"name":6,"category":7,"categoryName":8,"updatedAt":9,"os":10,"osLabel":11,"quickSolution":12,"stepByStep":13,"recommendedSoftware":15,"alternativeMethods":19,"commonIssues":23,"securityNote":36,"extensionPath":37,"extensionLabel":38,"breadcrumbs":39,"metaDescription":49},false,"h261","H.261 Video File","video","Video","2026-03-19T08:36:41.017Z","ios","iOS","To open .H261 files on iOS, use a media player app like VLC for Mobile that supports H.261.",[14],"Use a media player app like VLC for Mobile that supports H.261.",[16,17,18],"Files player","VLC for Mobile","Infuse",[20,21,22],"Open .H261 in a browser-based viewer if desktop apps fail.","Try opening .H261 on iOS with a secondary app to rule out app-specific issues.","Convert .H261 only with trusted tools when direct opening is not possible.",[24,30],{"title":25,"description":26,"steps":27},"File won't open","The file may not open due to a lack of codec support.",[28,29],"Ensure VLC Media Player is installed.","Check for any available codec packs and install them.",{"title":31,"description":32,"steps":33},"Choppy playback","Video playback might be choppy if the system is underpowered.",[34,35],"Close other applications to free up resources.","Ensure your media player is up to date.","Ensure the source of the .h261 file is trusted to avoid malware.","/file-extension/h261",".H261",[40,43,46],{"label":41,"to":42},"Home","/",{"label":44,"to":45},"How To","/file-extension",{"label":47,"to":48},"Open .H261 on iOS","/how-to/open-h261-on-ios","Learn how to open .H261 files on iOS with step-by-step instructions, recommended software, and troubleshooting tips."]