1-Open your MTG file in your favorite spreadsheet software (for instance Excel or LibreOffice Calc).

2-Select and copy the MTG data to the clipboard : Click anywhere in the current sheet, press “CTRL+A” (select all) then “CTRL+C” (copy).

3-Open Xplo.

4-“CTRL+SHIFT+V” or “Menu Project→Import from clipboard” to import your data.

Here is an example of MTG file :

CODE:	FORM-A						
CLASSES :							
SYMBOL	SCALE	DECOMPOSITION	INDEXATION	DEFINITION			
$	0	NOTCONNECTED	FREE	EXPLICIT			
P	1	CONNECTED	FREE	EXPLICIT			
A	2	LINEAR	FREE	EXPLICIT			
U	3	LINEAR	FREE	EXPLICIT			
I	4	LINEAR	FREE	EXPLICIT			
							
							
FEATURES:							
NAME	TYPE						
Length	REAL						
AxillaryBud	INT						
							
							
MTG:							
							
ENTITY-CODE				Length	AxIllaryBud		
/P1							
	/A1			24			
	^/U2009			10.5			
	^/I1			0.4	2		
	^<I2			0.8	1		
	^<I3			1.2	1		
	^<I4			1	1		
	^<I5			1.6	1		
	^<I6			1.3	1		
		+A2		3.5			
		^/U2010		3.5			
		^/I1		0.1	1		
		^<I2		0.5	1		
		^<I3		1	1		
		^<I4		0.5	1		
		^<I5		0.5	1		
		^<I6		0.1	1		
		^<I7		0.3	1		
		^<I8		0.8	1		
	^<I7			1.2	1		
		+A2		6			
		^/U2010		6			
		^/I1		0.1	1		
		^<I2		0.3	1		
		^<I3		0.8	1		
			+A3	4			
			^/U2010	4			
			^/I1	0.1	1		
			^<I2	0.4	1		
			^<I3	0.6	1		
			^<I4	0.8	1		
			^<I5	0.5	1		
			^<I6	0.4	1		
			^<I7	1.6			
		^<I4		0.8	1		
			+A3	3			
			^/U2010	3			
			^/I1	0.1	1		
			^<I2	0.2	1		
			^<I3	0.7	1		
			^<I4	0.6	1		
			^<I5	0.6	1		
			^<I6	0.5	1		
			^<I7	0.5	1		
		^<I5		0.6	1		
		^<I6		0.7	1		
		^<I7		0.6	1		
		^<I8		0.2	1		
		^<I9		0.2	1		
		^<I10		0.4	1		
	^<I8			1.5	1		
		+A2		4			
		^/U2010		4			
		^/I1		0.1	1		
		^<I2		0.5	1		
		^<I3		0.6	1		
		^<I4		0.6	1		
		^<I5		0.6	1		
			+A3	1.5			
			^/U2010	1.5			
			^/I1	0.1	1		
			^<I2	0.5	1		
			^<I3	1.1			
		^<I6		0.5	1		
		^<I7		1.1	1		
	^<U2010			13			
	^<I9			1.6	1		
	^<I10			1.6	1		
	^<I11			1.5	1		
	^<I12			1.3	1		
	^<I13			1.7	1		
	^<I14			2	1		
	^<I15			1	1		
	^<I16			0.7	1		
	^<I17			0.8	1		
	^<I18			1	1						

Select all the above MTG data, then CTRL-C to copy to the clipboard. Go into Xplo then CTRL+SHIFT+V to import.

You should get a result that looks like :