On Schedule schedule data file
File type: Various data file
Files with the slst file extension contain schedule data created by On Schedule.
On Schedule was personal organising software for Microsoft Windows.
File type category:
Various data file
Date updated: October 5, 2026
Record marked as obsolete and not updated for a long time.
The slst file extension is associated with On Schedule, a personal organising program developed by Squidge Software for Microsoft Windows.
An slst file stores schedule information used by On Schedule. It is a program-specific data file rather than a general-purpose schedule format.
The slst format is obsolete, so these files are unlikely to be used by current software.
Open an slst file with the original On Schedule program on Microsoft Windows. Because the software and format are obsolete, a compatible installation may be difficult to obtain.
No conversion method is specified for the obsolete slst file format. If the file can still be opened in On Schedule, use any export or printing features provided by that program.
Software applications that can open slst files:
Microsoft Windows
On Schedule
Software applications that can edit slst files:
Microsoft Windows
On Schedule
Software capable of saving slst files:
Microsoft Windows
On Schedule
Software apps that create slst files:
Microsoft Windows
On Schedule
Software applications that handle other tasks involving slst files:
Microsoft Windows
On Schedule
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