DBF 110 will not shut off - Fantech DBF110

This is caused by incorrect MIME handling by Windows when 'DBF Viewer 2000' is installed. The 'DBF Viewer 2000' program associates the .DBF file extension with 'application/DBF Viewer 2000' instead of 'application/octet-stream'. Remove 'DBF Viewer 2000' from the affected system. If you are still experiencing the issue I can suggest this program DBF Repair Toolbox https://www.repairtoolbox.com/dbfrepair.html

"Not a table" means more serious problem than TABLEVALIDATE can fix obviously. Also when DBF recovery fails the problem can be critical (if you have the DBF recovery which supports your DBF file format).

You should look at the DBF header via some hexa editor. You may even use the one from VFP:

DO HOME() + "Tools\HexEdit\HexEdit.app"

It will ask for a file opening so please select your DBF and post first two lines here or look at the DBF structure description in the VFP help.

First two lines (in hex editor) contain the file type, number of records, record size, last update etc. "Not a table" means the first byte was not recognized as valid DBF file marker.
Additional lines contain column descriptions each one in 16 bytes.

More info: http://msdn.microsoft.com/en-us/library/st4a0s68(v=vs.80).aspx
Second easiest fix is use DBF Recovery Toolbox or some other applications. Search in Google. http://www.oemailrecovery.com/dbf_recovery.html

Sub ABC()
Dim r1 as Range, r as Range, bk as Workbook
set r1 = Activesheet.range("A1?)
set bk = workbooks.open("C:\Myfolder\Myfile.dbf")
set r = bk.worksheets(1).Range("A1?).currentRegion
r.copy r1
bk.close SaveChanges:=False
end sub

That is the way I have been doing it successfully in xl2003 and earlier for years. Support for Saving as DBF was dropped in xl2007 for sure but I believe it can still read a dbf file.
http://itknowledgeexchange.techtarget.com/itanswers/how-do-i-open-a-dbf-file-to-a-tab-in-my-worksheet/

Try eRepair DBF works with a wide variety of database programs for recovering data from files that have become damaged or corrupt. eRepair DBF can recover the file structure which includes table fields that make up a DBF file, information contained in the memo fields, and a variety of records that are commonly included in DBF files.

For more: http://dbf.erepairtools.com/

Completely - in any way. If you find also tbk the file - then is possible. bak is
backup copy of the dbf file, tbk - a backup copy of fpt (there a memo of a field are).
However you were perhaps lucky, and actually fpt the file wasn't cleared.
And it is possible "to restore" of course simple renaming of bak file into dbf file. Of course then have to be reindexed the table, and if the structure changed, in general, to recreate the indexes from scratch. and perhaps "to treat"
the container Database dbc/dct (if you use it of course).
If so it doesn't turn out, then try to restore through DBF Viewer Tool. It well restores.
http://www.dbf.viewertool.com/
Come here on a forum and look at councils for this subject is there.
http://www.filerepairforum.com/forum/databases/databases-aa/dbase-iv-clipper-foxpro/1355-help-to-repair-dbf-file

Good luck!

Faulty switch (replace it) or Loose switch (wrap the body with electric tape)