The .sch file extension is used for a proprietary data file format that was created by Microsoft. Also known as Microsoft Schedule+ project files, these SCH files can be created using the Microsoft Schedule+ software, which is an outdated and unsupported program that has been replaced by Microsoft Outlook.These SCH files contain project data that has been created using the Microsoft Schedule+ software. These .sch files are normally found in older Windows PCs.The Microsoft Schedule+ software can be used to open these .sch files. It's recommended to only use this program for viewing and editing the project data that is stored in these SCH files.
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