Triadis Engineering Glide Computer and Navigation System Owner's Manual page 31

The file browser dialog shows a list of files that may be candi-
dates for deletion. The dialog also shows the current free storage
memory.
There is a filter to allow the selection of different types of files,
including:
1. Flight logs (.igc)
2. Data logs (.log)
3. Tasks (.tsk)
4. Profiles (.prf)
5. Programs (.exe)
6. Audio (.wav)
7. Data files (.dat)
8. Text files (.txt)
9. Topology files (.tpl)
10. All (*)
After changing the filter, press the 'Refresh' button to scan the
system for matching files.
Important system files used by Altair and XCSoar are hidden from
view and so cannot be accidentally deleted.
Press the Close button when finished with file browsing/deleting.
If the file browser was initiated in response to the system determin-
ing insufficient free storage to complete a file transfer, and there is
still insufficient free storage, then the user will be asked whether
to return to the file browser or cancel the file transfer.
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