c# Error: “Could Not Find Installable ISAM” in converting Excel file into .CSV file -


i'm working on project able convert excel files .csv file, think there problems in c# code generating , error message could not find installable isam, please me sort out problem.

code:

if (dlgone.filename.endswith(".xlsx")) {     strconn = @"provider=microsoft.ace.oledb.12.0;data source=" + srcfile + ";extended properties=\"excel 12.0;\""; }  if (dlgtwo.filename.endswith(".xls")) {     strconn = @"provider=microsoft.jet.oledb.4.0;data source=" + srcfile + ";extended properties=\"excel 1.0;hdr=yes;imex=1\""; }  oledbconnection conn = null;  conn = new oledbconnection(strconn); conn.open();  <------------ throw exception

in debug mode application throws exception (line: conn.open();) searched internet , found have put data source between 1 cotes doesn't work in case.

both of connection strings wrong.

for .xlsx, should be:

strconn = @"provider=microsoft.ace.oledb.12.0;data source=" + srcfile + ";extended properties=\"excel 12.0 xml;hdr=yes;imex=1\";";

(note xml part, hdr=yes indicate file has headers, imex=1 treat data text , repositioned semi-colon. need different connection strings .xlsm , .xlsb files - see here)

for .xls, should be:

strconn = @"provider=microsoft.jet.oledb.4.0;data source=" + srcfile + ";extended properties=\"excel 8.0;hdr=yes;imex=1\";";

(note change excel 1.0 excel 8.0 , addition of semi-colon @ end)


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